89977250631 has 4 divisors (see below), whose sum is σ = 119969667512. Its totient is φ = 59984833752.

The previous prime is 89977250617. The next prime is 89977250639. The reversal of 89977250631 is 13605277998.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 89977250631 - 2³⁰ = 88903508807 is a prime.

It is a super-2 number, since 2×89977250631² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89977250639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14996208436 + ... + 14996208441.

It is an arithmetic number, because the mean of its divisors is an integer number (29992416878).

Almost surely, 2^89977250631 is an apocalyptic number.

89977250631 is a deficient number, since it is larger than the sum of its proper divisors (29992416881).

89977250631 is a wasteful number, since it uses less digits than its factorization.

89977250631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29992416880.

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 89977250631 in words is "eighty-nine billion, nine hundred seventy-seven million, two hundred fifty thousand, six hundred thirty-one".