264596707981 has 8 divisors (see below), whose sum is σ = 266265889344. Its totient is φ = 262928086560.

The previous prime is 264596707967. The next prime is 264596707993. The reversal of 264596707981 is 189707695462.

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 264596707981 - 2⁷ = 264596707853 is a prime.

It is a super-2 number, since 2×264596707981² (a number of 24 digits) contains 22 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 (264596707951) 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, 829161 + ... + 1103041.

It is an arithmetic number, because the mean of its divisors is an integer number (33283236168).

Almost surely, 2^264596707981 is an apocalyptic number.

It is an amenable number.

264596707981 is a deficient number, since it is larger than the sum of its proper divisors (1669181363).

264596707981 is a wasteful number, since it uses less digits than its factorization.

264596707981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279971.

The product of its (nonzero) digits is 45722880, while the sum is 64.

The spelling of 264596707981 in words is "two hundred sixty-four billion, five hundred ninety-six million, seven hundred seven thousand, nine hundred eighty-one".