30746879472 has 20 divisors (see below), whose sum is σ = 79429438760. Its totient is φ = 10248959808.

The previous prime is 30746879441. The next prime is 30746879489. The reversal of 30746879472 is 27497864703.

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, 320279947 + ... + 320280042.

It is an arithmetic number, because the mean of its divisors is an integer number (3971471938).

Almost surely, 2^30746879472 is an apocalyptic number.

It is an amenable number.

30746879472 is an abundant number, since it is smaller than the sum of its proper divisors (48682559288).

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

30746879472 is a wasteful number, since it uses less digits than its factorization.

30746879472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640560000 (or 640559994 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 57.

The spelling of 30746879472 in words is "thirty billion, seven hundred forty-six million, eight hundred seventy-nine thousand, four hundred seventy-two".