30801007280 has 80 divisors (see below), whose sum is σ = 75725653248. Its totient is φ = 11632128000.

The previous prime is 30801007277. The next prime is 30801007297. The reversal of 30801007280 is 8270010803.

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

It is a super-2 number, since 2×30801007280² (a number of 22 digits) contains 22 as substring.

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, 49781 + ... + 253140.

Almost surely, 2^30801007280 is an apocalyptic number.

It is an amenable number.

30801007280 is an abundant number, since it is smaller than the sum of its proper divisors (44924645968).

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

30801007280 is a wasteful number, since it uses less digits than its factorization.

30801007280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303006 (or 303000 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The spelling of 30801007280 in words is "thirty billion, eight hundred one million, seven thousand, two hundred eighty".