89756808636049 has 9 divisors (see below), whose sum is σ = 89861590060731. Its totient is φ = 89652149280720.

The previous prime is 89756808636043. The next prime is 89756808636071. The reversal of 89756808636049 is 94063680865798.

The square root of 89756808636049 is 9474007.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4725689038225 + 85031119597824 = 2173865^2 + 9221232^2 .

It is not a de Polignac number, because 89756808636049 - 2²¹ = 89756806538897 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 89756808636049.

It is not an unprimeable number, because it can be changed into a prime (89756808636043) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8877139504 + ... + 8877149614.

It is an arithmetic number, because the mean of its divisors is an integer number (9984621117859).

Almost surely, 2^{89756808636049} is an apocalyptic number.

89756808636049 is the 9474007-th square number.

89756808636049 is the 4737004-th centered octagonal number.

It is an amenable number.

89756808636049 is a deficient number, since it is larger than the sum of its proper divisors (104781424682).

89756808636049 is an frugal number, since it uses more digits than its factorization.

89756808636049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22096 (or 11048 counting only the distinct ones).

The product of its (nonzero) digits is 3762339840, while the sum is 79.

The spelling of 89756808636049 in words is "eighty-nine trillion, seven hundred fifty-six billion, eight hundred eight million, six hundred thirty-six thousand, forty-nine".