30479207808 has 128 divisors (see below), whose sum is σ = 97396128000. Its totient is φ = 8249997312.

The previous prime is 30479207767. The next prime is 30479207821. The reversal of 30479207808 is 80870297403.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 247323 + ... + 349466.

It is an arithmetic number, because the mean of its divisors is an integer number (760907250).

Almost surely, 2^30479207808 is an apocalyptic number.

30479207808 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

30479207808 is an abundant number, since it is smaller than the sum of its proper divisors (66916920192).

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

30479207808 is a wasteful number, since it uses less digits than its factorization.

30479207808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596832 (or 596820 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 48.

The spelling of 30479207808 in words is "thirty billion, four hundred seventy-nine million, two hundred seven thousand, eight hundred eight".