30397999680 has 896 divisors, whose sum is σ = 120437452800. Its totient is φ = 7182286848.

The previous prime is 30397999673. The next prime is 30397999759. The reversal of 30397999680 is 8699979303.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 313381392 + ... + 313381488.

It is an arithmetic number, because the mean of its divisors is an integer number (134416800).

Almost surely, 2^30397999680 is an apocalyptic number.

30397999680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30397999680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60218726400).

30397999680 is an abundant number, since it is smaller than the sum of its proper divisors (90039453120).

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

30397999680 is a wasteful number, since it uses less digits than its factorization.

30397999680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 19840464, while the sum is 63.

The spelling of 30397999680 in words is "thirty billion, three hundred ninety-seven million, nine hundred ninety-nine thousand, six hundred eighty".