30823251980 has 24 divisors (see below), whose sum is σ = 68135610480. Its totient is φ = 11680390080.

The previous prime is 30823251971. The next prime is 30823251983. The reversal of 30823251980 is 8915232803.

It is not an unprimeable number, because it can be changed into a prime (30823251983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40556531 + ... + 40557290.

It is an arithmetic number, because the mean of its divisors is an integer number (2838983770).

Almost surely, 2^30823251980 is an apocalyptic number.

It is an amenable number.

30823251980 is an abundant number, since it is smaller than the sum of its proper divisors (37312358500).

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

30823251980 is a wasteful number, since it uses less digits than its factorization.

30823251980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81113849 (or 81113847 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 30823251980 in words is "thirty billion, eight hundred twenty-three million, two hundred fifty-one thousand, nine hundred eighty".