30979490715 has 16 divisors (see below), whose sum is σ = 55074650400. Its totient is φ = 16522394976.

The previous prime is 30979490687. The next prime is 30979490723. The reversal of 30979490715 is 51709497903.

It is a happy number.

It is not a de Polignac number, because 30979490715 - 2¹² = 30979486619 is a prime.

It is a super-2 number, since 2×30979490715² (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, 114738720 + ... + 114738989.

It is an arithmetic number, because the mean of its divisors is an integer number (3442165650).

Almost surely, 2^30979490715 is an apocalyptic number.

30979490715 is a deficient number, since it is larger than the sum of its proper divisors (24095159685).

30979490715 is a wasteful number, since it uses less digits than its factorization.

30979490715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229477723 (or 229477717 counting only the distinct ones).

The product of its (nonzero) digits is 2143260, while the sum is 54.

The spelling of 30979490715 in words is "thirty billion, nine hundred seventy-nine million, four hundred ninety thousand, seven hundred fifteen".