264386995172208 has 80 divisors (see below), whose sum is σ = 760800155926560. Its totient is φ = 87907010932224.

The previous prime is 264386995172147. The next prime is 264386995172231. The reversal of 264386995172208 is 802271599683462.

264386995172208 is a `hidden beast` number, since 2 + 6 + 4 + 3 + 86 + 9 + 9 + 517 + 2 + 20 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 770618085 + ... + 770961092.

It is an arithmetic number, because the mean of its divisors is an integer number (9510001949082).

It is a 6-persistent number, because k⋅264386995172208 is pandigital for 1 ≤ k ≤ 6, but not for k = 7.

Almost surely, 2^{264386995172208} is an apocalyptic number.

It is an amenable number.

264386995172208 is an abundant number, since it is smaller than the sum of its proper divisors (496413160754352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

264386995172208 is a wasteful number, since it uses less digits than its factorization.

264386995172208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541579591 (or 1541579579 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 72.

The spelling of 264386995172208 in words is "two hundred sixty-four trillion, three hundred eighty-six billion, nine hundred ninety-five million, one hundred seventy-two thousand, two hundred eight".