89974201791 has 32 divisors (see below), whose sum is σ = 126444874752. Its totient is φ = 56798438400.

The previous prime is 89974201787. The next prime is 89974201841. The reversal of 89974201791 is 19710247998.

It is not a de Polignac number, because 89974201791 - 2² = 89974201787 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89974201591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3038031 + ... + 3067503.

It is an arithmetic number, because the mean of its divisors is an integer number (3951402336).

Almost surely, 2^89974201791 is an apocalyptic number.

89974201791 is a deficient number, since it is larger than the sum of its proper divisors (36470672961).

89974201791 is a wasteful number, since it uses less digits than its factorization.

89974201791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29943.

The product of its (nonzero) digits is 2286144, while the sum is 57.

The spelling of 89974201791 in words is "eighty-nine billion, nine hundred seventy-four million, two hundred one thousand, seven hundred ninety-one".