264393412864 has 81 divisors (see below), whose sum is σ = 614051714871. Its totient is φ = 113286781440.

The previous prime is 264393412853. The next prime is 264393412879. The reversal of 264393412864 is 468214393462.

The square root of 264393412864 is 514192.

It is a perfect power (a square), and thus also a powerful number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 57587209 + ... + 57591799.

Almost surely, 2^264393412864 is an apocalyptic number.

264393412864 is the 514192-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264393412864

264393412864 is an abundant number, since it is smaller than the sum of its proper divisors (349658302007).

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

264393412864 is an frugal number, since it uses more digits than its factorization.

264393412864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212 (or 4600 counting only the distinct ones).

The product of its digits is 5971968, while the sum is 52.

The spelling of 264393412864 in words is "two hundred sixty-four billion, three hundred ninety-three million, four hundred twelve thousand, eight hundred sixty-four".