252816638763 has 16 divisors (see below), whose sum is σ = 363731991840. Its totient is φ = 155273800704.

The previous prime is 252816638749. The next prime is 252816638801. The reversal of 252816638763 is 367836618252.

It is not a de Polignac number, because 252816638763 - 2⁹ = 252816638251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (252816638363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6348006 + ... + 6387707.

It is an arithmetic number, because the mean of its divisors is an integer number (22733249490).

Almost surely, 2^252816638763 is an apocalyptic number.

252816638763 is a deficient number, since it is larger than the sum of its proper divisors (110915353077).

252816638763 is a wasteful number, since it uses less digits than its factorization.

252816638763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12736238.

The product of its digits is 17418240, while the sum is 57.

The spelling of 252816638763 in words is "two hundred fifty-two billion, eight hundred sixteen million, six hundred thirty-eight thousand, seven hundred sixty-three".