30400646979 has 8 divisors (see below), whose sum is σ = 40650341200. Its totient is φ = 20209025376.

The previous prime is 30400646953. The next prime is 30400647029. The reversal of 30400646979 is 97964600403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30400646979 - 2⁸ = 30400646723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30400646929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14516932 + ... + 14519025.

It is an arithmetic number, because the mean of its divisors is an integer number (5081292650).

Almost surely, 2^30400646979 is an apocalyptic number.

30400646979 is a deficient number, since it is larger than the sum of its proper divisors (10249694221).

30400646979 is a wasteful number, since it uses less digits than its factorization.

30400646979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29036309.

The product of its (nonzero) digits is 979776, while the sum is 48.

The spelling of 30400646979 in words is "thirty billion, four hundred million, six hundred forty-six thousand, nine hundred seventy-nine".