89744702991 has 8 divisors (see below), whose sum is σ = 120757398960. Its totient is φ = 59280904512.

The previous prime is 89744702963. The next prime is 89744703001. The reversal of 89744702991 is 19920744798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 89744702991 - 2¹³ = 89744694799 is a prime.

It is a super-2 number, since 2×89744702991² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89744702921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137223990 + ... + 137224643.

It is an arithmetic number, because the mean of its divisors is an integer number (15094674870).

Almost surely, 2^89744702991 is an apocalyptic number.

89744702991 is a deficient number, since it is larger than the sum of its proper divisors (31012695969).

89744702991 is a wasteful number, since it uses less digits than its factorization.

89744702991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274448745.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 89744702991 in words is "eighty-nine billion, seven hundred forty-four million, seven hundred two thousand, nine hundred ninety-one".