30879200892 has 12 divisors (see below), whose sum is σ = 72051468776. Its totient is φ = 10293066960.

The previous prime is 30879200867. The next prime is 30879200897. The reversal of 30879200892 is 29800297803.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30879200897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286633359 + ... + 1286633382.

Almost surely, 2^30879200892 is an apocalyptic number.

It is an amenable number.

30879200892 is an abundant number, since it is smaller than the sum of its proper divisors (41172267884).

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

30879200892 is a wasteful number, since it uses less digits than its factorization.

30879200892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573266748 (or 2573266746 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 30879200892 in words is "thirty billion, eight hundred seventy-nine million, two hundred thousand, eight hundred ninety-two".