30642632641 has 8 divisors (see below), whose sum is σ = 32258189600. Its totient is φ = 29027354400.

The previous prime is 30642632633. The next prime is 30642632663. The reversal of 30642632641 is 14623624603.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30642632641 - 2³ = 30642632633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30642632641.

It is not an unprimeable number, because it can be changed into a prime (30642632611) 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, 178741 + ... + 305341.

It is an arithmetic number, because the mean of its divisors is an integer number (4032273700).

Almost surely, 2^30642632641 is an apocalyptic number.

It is an amenable number.

30642632641 is a deficient number, since it is larger than the sum of its proper divisors (1615556959).

30642632641 is a wasteful number, since it uses less digits than its factorization.

30642632641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139359.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 30642632641 in words is "thirty billion, six hundred forty-two million, six hundred thirty-two thousand, six hundred forty-one".