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6468396481 = 31279174761
BaseRepresentation
bin1100000011000101…
…11110010111000001
3121200210102120212001
412001202332113001
5101221402141411
62545504104001
7316202314531
oct60142762701
917623376761
106468396481
11281a272018
121306305001
137c1137051
144550d94c1
1527cd0bdc1
hex1818be5c1

6468396481 has 8 divisors (see below), whose sum is σ = 6679536128. Its totient is φ = 6257412000.

The previous prime is 6468396463. The next prime is 6468396491. The reversal of 6468396481 is 1846938646.

6468396481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6468396481 - 25 = 6468396449 is a prime.

It is a super-2 number, since 2×64683964812 = 83680306070826366722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6468396401) 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, 49141 + ... + 123901.

It is an arithmetic number, because the mean of its divisors is an integer number (834942016).

Almost surely, 26468396481 is an apocalyptic number.

It is an amenable number.

6468396481 is a deficient number, since it is larger than the sum of its proper divisors (211139647).

6468396481 is a wasteful number, since it uses less digits than its factorization.

6468396481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77583.

The product of its digits is 5971968, while the sum is 55.

The square root of 6468396481 is about 80426.3419595844. The cubic root of 6468396481 is about 1863.2260352519.

The spelling of 6468396481 in words is "six billion, four hundred sixty-eight million, three hundred ninety-six thousand, four hundred eighty-one".

Divisors: 1 31 2791 74761 86521 2317591 208657951 6468396481