30642632605 has 16 divisors (see below), whose sum is σ = 39615904944. Its totient is φ = 22619151360.

The previous prime is 30642632599. The next prime is 30642632611. The reversal of 30642632605 is 50623624603.

It is an interprime number because it is at equal distance from previous prime (30642632599) and next prime (30642632611).

It can be written as a sum of positive squares in 8 ways, for example, as 264582756 + 30378049849 = 16266^2 + 174293^2 .

It is not a de Polignac number, because 30642632605 - 2³ = 30642632597 is a prime.

It is a Duffinian number.

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, 65845 + ... + 256165.

It is an arithmetic number, because the mean of its divisors is an integer number (2475994059).

Almost surely, 2^30642632605 is an apocalyptic number.

It is an amenable number.

30642632605 is a deficient number, since it is larger than the sum of its proper divisors (8973272339).

30642632605 is a wasteful number, since it uses less digits than its factorization.

30642632605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192816.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 30642632605 in words is "thirty billion, six hundred forty-two million, six hundred thirty-two thousand, six hundred five".