30797087280 has 40 divisors (see below), whose sum is σ = 95470971312. Its totient is φ = 8212556544.

The previous prime is 30797087267. The next prime is 30797087291. The reversal of 30797087280 is 8278079703.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64160359 + ... + 64160838.

Almost surely, 2^30797087280 is an apocalyptic number.

30797087280 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30797087280 is an abundant number, since it is smaller than the sum of its proper divisors (64673884032).

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

30797087280 is a wasteful number, since it uses less digits than its factorization.

30797087280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128321213 (or 128321207 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 30797087280 in words is "thirty billion, seven hundred ninety-seven million, eighty-seven thousand, two hundred eighty".