30281264880 has 80 divisors (see below), whose sum is σ = 93935907360. Its totient is φ = 8069499904.

The previous prime is 30281264809. The next prime is 30281264899. The reversal of 30281264880 is 8846218203.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316066 + ... + 400574.

It is an arithmetic number, because the mean of its divisors is an integer number (1174198842).

Almost surely, 2^30281264880 is an apocalyptic number.

30281264880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30281264880 is an abundant number, since it is smaller than the sum of its proper divisors (63654642480).

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

30281264880 is a wasteful number, since it uses less digits than its factorization.

30281264880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86018 (or 86012 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 42.

The spelling of 30281264880 in words is "thirty billion, two hundred eighty-one million, two hundred sixty-four thousand, eight hundred eighty".