30642632664 has 64 divisors (see below), whose sum is σ = 88400432640. Its totient is φ = 8670032640.

The previous prime is 30642632663. The next prime is 30642632681. The reversal of 30642632664 is 46623624603.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30642632663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868117 + ... + 902724.

It is an arithmetic number, because the mean of its divisors is an integer number (1381256760).

Almost surely, 2^30642632664 is an apocalyptic number.

It is an amenable number.

30642632664 is an abundant number, since it is smaller than the sum of its proper divisors (57757799976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30642632664 is a wasteful number, since it uses less digits than its factorization.

30642632664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1770960 (or 1770956 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 42.

The spelling of 30642632664 in words is "thirty billion, six hundred forty-two million, six hundred thirty-two thousand, six hundred sixty-four".