263750138764 has 12 divisors (see below), whose sum is σ = 527500277584. Its totient is φ = 113035773744.

The previous prime is 263750138723. The next prime is 263750138767. The reversal of 263750138764 is 467831057362.

263750138764 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (263750138767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4709823879 + ... + 4709823934.

Almost surely, 2^263750138764 is an apocalyptic number.

It is an amenable number.

263750138764 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

263750138764 is a wasteful number, since it uses less digits than its factorization.

263750138764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9419647824 (or 9419647822 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 52.

The spelling of 263750138764 in words is "two hundred sixty-three billion, seven hundred fifty million, one hundred thirty-eight thousand, seven hundred sixty-four".