253007686863 has 32 divisors (see below), whose sum is σ = 378986065920. Its totient is φ = 166810119840.

The previous prime is 253007686843. The next prime is 253007686871. The reversal of 253007686863 is 368686700352.

It is not a de Polignac number, because 253007686863 - 2¹⁶ = 253007621327 is a prime.

It is a super-2 number, since 2×253007686863² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253007686843) 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, 745858 + ... + 1030688.

It is an arithmetic number, because the mean of its divisors is an integer number (11843314560).

Almost surely, 2^253007686863 is an apocalyptic number.

253007686863 is a deficient number, since it is larger than the sum of its proper divisors (125978379057).

253007686863 is a wasteful number, since it uses less digits than its factorization.

253007686863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285204 (or 285198 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 253007686863 in words is "two hundred fifty-three billion, seven million, six hundred eighty-six thousand, eight hundred sixty-three".