264478884864 has 176 divisors, whose sum is σ = 719815595520. Its totient is φ = 86311895040.

The previous prime is 264478884851. The next prime is 264478884883. The reversal of 264478884864 is 468488874462.

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, 41785252 + ... + 41791580.

Almost surely, 2^264478884864 is an apocalyptic number.

264478884864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 264478884864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (359907797760).

264478884864 is an abundant number, since it is smaller than the sum of its proper divisors (455336710656).

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

264478884864 is a wasteful number, since it uses less digits than its factorization.

264478884864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6636 (or 6618 counting only the distinct ones).

The product of its digits is 528482304, while the sum is 69.

The spelling of 264478884864 in words is "two hundred sixty-four billion, four hundred seventy-eight million, eight hundred eighty-four thousand, eight hundred sixty-four".