89757489961 has 16 divisors (see below), whose sum is σ = 96988307200. Its totient is φ = 82806841728.

The previous prime is 89757489917. The next prime is 89757489973. The reversal of 89757489961 is 16998475798.

It is a cyclic number.

It is not a de Polignac number, because 89757489961 - 2¹¹ = 89757487913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (73).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (89757489901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300006 + ... + 519151.

It is an arithmetic number, because the mean of its divisors is an integer number (6061769200).

Almost surely, 2^89757489961 is an apocalyptic number.

It is an amenable number.

89757489961 is a deficient number, since it is larger than the sum of its proper divisors (7230817239).

89757489961 is a wasteful number, since it uses less digits than its factorization.

89757489961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819328.

The product of its digits is 274337280, while the sum is 73.

The spelling of 89757489961 in words is "eighty-nine billion, seven hundred fifty-seven million, four hundred eighty-nine thousand, nine hundred sixty-one".