264977622721 has 4 divisors (see below), whose sum is σ = 302831568832. Its totient is φ = 227123676612.

The previous prime is 264977622713. The next prime is 264977622769. The reversal of 264977622721 is 127226779462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 264977622721 - 2³ = 264977622713 is a prime.

It is a super-3 number, since 3×264977622721³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264977622821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18926973045 + ... + 18926973058.

It is an arithmetic number, because the mean of its divisors is an integer number (75707892208).

Almost surely, 2^264977622721 is an apocalyptic number.

It is an amenable number.

264977622721 is a deficient number, since it is larger than the sum of its proper divisors (37853946111).

264977622721 is an equidigital number, since it uses as much as digits as its factorization.

264977622721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37853946110.

The product of its digits is 7112448, while the sum is 55.

The spelling of 264977622721 in words is "two hundred sixty-four billion, nine hundred seventy-seven million, six hundred twenty-two thousand, seven hundred twenty-one".