30461631825 has 72 divisors (see below), whose sum is σ = 52853651872. Its totient is φ = 15479228160.

The previous prime is 30461631821. The next prime is 30461631847. The reversal of 30461631825 is 52813616403.

It is not a de Polignac number, because 30461631825 - 2² = 30461631821 is a prime.

It is a super-2 number, since 2×30461631825² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30461631821) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 11226669 + ... + 11229381.

Almost surely, 2^30461631825 is an apocalyptic number.

It is an amenable number.

30461631825 is a deficient number, since it is larger than the sum of its proper divisors (22392020047).

30461631825 is a wasteful number, since it uses less digits than its factorization.

30461631825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 30461631825 in words is "thirty billion, four hundred sixty-one million, six hundred thirty-one thousand, eight hundred twenty-five".