30640667115 has 32 divisors (see below), whose sum is σ = 49524074496. Its totient is φ = 16175502720.

The previous prime is 30640667093. The next prime is 30640667117. The reversal of 30640667115 is 51176604603.

It is not a de Polignac number, because 30640667115 - 2⁹ = 30640666603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30640667117) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5260905 + ... + 5266725.

It is an arithmetic number, because the mean of its divisors is an integer number (1547627328).

Almost surely, 2^30640667115 is an apocalyptic number.

30640667115 is a deficient number, since it is larger than the sum of its proper divisors (18883407381).

30640667115 is a wasteful number, since it uses less digits than its factorization.

30640667115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9339.

The product of its (nonzero) digits is 90720, while the sum is 39.

The spelling of 30640667115 in words is "thirty billion, six hundred forty million, six hundred sixty-seven thousand, one hundred fifteen".