263881325504 has 56 divisors (see below), whose sum is σ = 583623023760. Its totient is φ = 117643677696.

The previous prime is 263881325503. The next prime is 263881325527. The reversal of 263881325504 is 405523188362.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263881325503) 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, 6361907 + ... + 6403250.

It is an arithmetic number, because the mean of its divisors is an integer number (10421839710).

Almost surely, 2^263881325504 is an apocalyptic number.

It is an amenable number.

263881325504 is an abundant number, since it is smaller than the sum of its proper divisors (319741698256).

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

263881325504 is a wasteful number, since it uses less digits than its factorization.

263881325504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12765205 (or 12765195 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 47.

The spelling of 263881325504 in words is "two hundred sixty-three billion, eight hundred eighty-one million, three hundred twenty-five thousand, five hundred four".