30812773250 has 32 divisors (see below), whose sum is σ = 65921731200. Its totient is φ = 10564378800.

The previous prime is 30812773231. The next prime is 30812773253. The reversal of 30812773250 is 5237721803.

It is not an unprimeable number, because it can be changed into a prime (30812773253) 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 15 ways as a sum of consecutive naturals, for example, 8801900 + ... + 8805399.

It is an arithmetic number, because the mean of its divisors is an integer number (2060054100).

Almost surely, 2^30812773250 is an apocalyptic number.

30812773250 is an abundant number, since it is smaller than the sum of its proper divisors (35108957950).

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

30812773250 is a wasteful number, since it uses less digits than its factorization.

30812773250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17607323 (or 17607313 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 30812773250 in words is "thirty billion, eight hundred twelve million, seven hundred seventy-three thousand, two hundred fifty".