91998848733 has 16 divisors (see below), whose sum is σ = 133821921792. Its totient is φ = 55754622000.

The previous prime is 91998848729. The next prime is 91998848737. The reversal of 91998848733 is 33784889919.

It is an interprime number because it is at equal distance from previous prime (91998848729) and next prime (91998848737).

It is not a de Polignac number, because 91998848733 - 2² = 91998848729 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91998848737) 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, 1168728 + ... + 1244958.

It is an arithmetic number, because the mean of its divisors is an integer number (8363870112).

Almost surely, 2^91998848733 is an apocalyptic number.

It is an amenable number.

91998848733 is a deficient number, since it is larger than the sum of its proper divisors (41823073059).

91998848733 is a wasteful number, since it uses less digits than its factorization.

91998848733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112816.

The product of its digits is 94058496, while the sum is 69.

The spelling of 91998848733 in words is "ninety-one billion, nine hundred ninety-eight million, eight hundred forty-eight thousand, seven hundred thirty-three".