89640988713 has 40 divisors (see below), whose sum is σ = 137225708928. Its totient is φ = 58288808736.

The previous prime is 89640988709. The next prime is 89640988741. The reversal of 89640988713 is 31788904698.

89640988713 is a `hidden beast` number, since 89 + 6 + 409 + 88 + 71 + 3 = 666.

It is not a de Polignac number, because 89640988713 - 2² = 89640988709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89640988793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1075270 + ... + 1155632.

Almost surely, 2^89640988713 is an apocalyptic number.

It is an amenable number.

89640988713 is a deficient number, since it is larger than the sum of its proper divisors (47584720215).

89640988713 is a wasteful number, since it uses less digits than its factorization.

89640988713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80715 (or 80706 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 63.

The spelling of 89640988713 in words is "eighty-nine billion, six hundred forty million, nine hundred eighty-eight thousand, seven hundred thirteen".