865280252763 has 32 divisors (see below), whose sum is σ = 1287636128000. Its totient is φ = 574275469248.

The previous prime is 865280252747. The next prime is 865280252773. The reversal of 865280252763 is 367252082568.

It is a happy number.

865280252763 is a `hidden beast` number, since 8 + 6 + 52 + 8 + 0 + 2 + 527 + 63 = 666.

It is not a de Polignac number, because 865280252763 - 2⁴ = 865280252747 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (865280252743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6585888 + ... + 6715986.

It is an arithmetic number, because the mean of its divisors is an integer number (40238629000).

Almost surely, 2^865280252763 is an apocalyptic number.

865280252763 is a deficient number, since it is larger than the sum of its proper divisors (422355875237).

865280252763 is a wasteful number, since it uses less digits than its factorization.

865280252763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131208 (or 131202 counting only the distinct ones).

The product of its (nonzero) digits is 9676800, while the sum is 54.

The spelling of 865280252763 in words is "eight hundred sixty-five billion, two hundred eighty million, two hundred fifty-two thousand, seven hundred sixty-three".