30615994105 has 4 divisors (see below), whose sum is σ = 36739192932. Its totient is φ = 24492795280.

The previous prime is 30615994099. The next prime is 30615994139. The reversal of 30615994105 is 50149951603.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9529469161 + 21086524944 = 97619^2 + 145212^2 .

It is not a de Polignac number, because 30615994105 - 2²⁵ = 30582439673 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3061599406 + ... + 3061599415.

It is an arithmetic number, because the mean of its divisors is an integer number (9184798233).

Almost surely, 2^30615994105 is an apocalyptic number.

It is an amenable number.

30615994105 is a deficient number, since it is larger than the sum of its proper divisors (6123198827).

30615994105 is an equidigital number, since it uses as much as digits as its factorization.

30615994105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6123198826.

The product of its (nonzero) digits is 145800, while the sum is 43.

The spelling of 30615994105 in words is "thirty billion, six hundred fifteen million, nine hundred ninety-four thousand, one hundred five".