30636742660 has 24 divisors (see below), whose sum is σ = 67723326720. Its totient is φ = 11609712864.

The previous prime is 30636742639. The next prime is 30636742667. The reversal of 30636742660 is 6624763603.

It is a super-2 number, since 2×30636742660² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (30636742667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40311124 + ... + 40311883.

It is an arithmetic number, because the mean of its divisors is an integer number (2821805280).

Almost surely, 2^30636742660 is an apocalyptic number.

It is an amenable number.

30636742660 is an abundant number, since it is smaller than the sum of its proper divisors (37086584060).

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

30636742660 is a wasteful number, since it uses less digits than its factorization.

30636742660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80623035 (or 80623033 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 43.

The spelling of 30636742660 in words is "thirty billion, six hundred thirty-six million, seven hundred forty-two thousand, six hundred sixty".