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67407040069 = 194382505557
BaseRepresentation
bin111110110001110001…
…011100111001000101
320102222201020102112121
4332301301130321011
52101022200240234
650544422445541
74604260246465
oct766161347105
9212881212477
1067407040069
1126650575986
12110925938b1
13648319ac35
1433964c7ba5
151b47b714b4
hexfb1c5ce45

67407040069 has 8 divisors (see below), whose sum is σ = 72604891040. Its totient is φ = 62374200336.

The previous prime is 67407040067. The next prime is 67407040087. The reversal of 67407040069 is 96004070476.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 67407040069 - 21 = 67407040067 is a prime.

It is a super-2 number, since 2×674070400692 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67407040067) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41251962 + ... + 41253595.

It is an arithmetic number, because the mean of its divisors is an integer number (9075611380).

Almost surely, 267407040069 is an apocalyptic number.

It is an amenable number.

67407040069 is a deficient number, since it is larger than the sum of its proper divisors (5197850971).

67407040069 is a wasteful number, since it uses less digits than its factorization.

67407040069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82505619.

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 67407040069 in words is "sixty-seven billion, four hundred seven million, forty thousand, sixty-nine".

Divisors: 1 19 43 817 82505557 1567605583 3547738951 67407040069