30445899992 has 16 divisors (see below), whose sum is σ = 57535560960. Its totient is φ = 15103083744.

The previous prime is 30445899983. The next prime is 30445900019. The reversal of 30445899992 is 29999854403.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14982203 + ... + 14984234.

It is an arithmetic number, because the mean of its divisors is an integer number (3595972560).

Almost surely, 2^30445899992 is an apocalyptic number.

It is an amenable number.

30445899992 is a deficient number, since it is larger than the sum of its proper divisors (27089660968).

30445899992 is a wasteful number, since it uses less digits than its factorization.

30445899992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29966570 (or 29966566 counting only the distinct ones).

The product of its (nonzero) digits is 25194240, while the sum is 62.

The spelling of 30445899992 in words is "thirty billion, four hundred forty-five million, eight hundred ninety-nine thousand, nine hundred ninety-two".