900630897931 has 4 divisors (see below), whose sum is σ = 900664654864. Its totient is φ = 900597141000.

The previous prime is 900630897919. The next prime is 900630898007. The reversal of 900630897931 is 139798036009.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139798036009 = 173 ⋅808081133.

It is a cyclic number.

It is not a de Polignac number, because 900630897931 - 2³³ = 892040963339 is a prime.

It is a super-2 number, since 2×900630897931² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (900630897031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16838415 + ... + 16891816.

It is an arithmetic number, because the mean of its divisors is an integer number (225166163716).

Almost surely, 2^900630897931 is an apocalyptic number.

900630897931 is the 547915-th hex number.

900630897931 is a deficient number, since it is larger than the sum of its proper divisors (33756933).

900630897931 is a wasteful number, since it uses less digits than its factorization.

900630897931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33756932.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The spelling of 900630897931 in words is "nine hundred billion, six hundred thirty million, eight hundred ninety-seven thousand, nine hundred thirty-one".