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78468417185045 = 597657124621907
BaseRepresentation
bin10001110101110111011010…
…001000011110010100010101
3101021211111200220120122121012
4101311313122020132110111
540241111304244410140
6434515520533302005
722346104346026136
oct2165673210362425
9337744626518535
1078468417185045
11230032a5919498
128973856194905
1334a2703486b34
141553c6a9bdc8d
15911224a0d265
hex475dda21e515

78468417185045 has 16 divisors (see below), whose sum is σ = 95147325473088. Its totient is φ = 62118114209280.

The previous prime is 78468417185003. The next prime is 78468417185047. The reversal of 78468417185045 is 54058171486487.

It is not a de Polignac number, because 78468417185045 - 26 = 78468417184981 is a prime.

It is a super-3 number, since 3×784684171850453 (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78468417185047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9124019 + ... + 15497888.

It is an arithmetic number, because the mean of its divisors is an integer number (5946707842068).

Almost surely, 278468417185045 is an apocalyptic number.

It is an amenable number.

78468417185045 is a deficient number, since it is larger than the sum of its proper divisors (16678908288043).

78468417185045 is a wasteful number, since it uses less digits than its factorization.

78468417185045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24628580.

The product of its (nonzero) digits is 240844800, while the sum is 68.

The spelling of 78468417185045 in words is "seventy-eight trillion, four hundred sixty-eight billion, four hundred seventeen million, one hundred eighty-five thousand, forty-five".

Divisors: 1 5 97 485 6571 32855 637387 3186935 24621907 123109535 2388324979 11941624895 161790550897 808952754485 15693683437009 78468417185045