30642751125 has 96 divisors (see below), whose sum is σ = 66452855040. Its totient is φ = 13270780800.

The previous prime is 30642751099. The next prime is 30642751127. The reversal of 30642751125 is 52115724603.

30642751125 is a `hidden beast` number, since 3 + 0 + 642 + 7 + 5 + 1 + 1 + 2 + 5 = 666.

It is not a de Polignac number, because 30642751125 - 2¹² = 30642747029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30642751125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30642751127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47227 + ... + 252023.

It is an arithmetic number, because the mean of its divisors is an integer number (692217240).

Almost surely, 2^30642751125 is an apocalyptic number.

30642751125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30642751125 is an abundant number, since it is smaller than the sum of its proper divisors (35810103915).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30642751125 is a wasteful number, since it uses less digits than its factorization.

30642751125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204844 (or 204831 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The spelling of 30642751125 in words is "thirty billion, six hundred forty-two million, seven hundred fifty-one thousand, one hundred twenty-five".