99537852491 has 16 divisors (see below), whose sum is σ = 129494757888. Its totient is φ = 74189702400.

The previous prime is 99537852487. The next prime is 99537852521. The reversal of 99537852491 is 19425873599.

It is not a de Polignac number, because 99537852491 - 2² = 99537852487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99537852461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28100390 + ... + 28103931.

It is an arithmetic number, because the mean of its divisors is an integer number (8093422368).

Almost surely, 2^99537852491 is an apocalyptic number.

99537852491 is a deficient number, since it is larger than the sum of its proper divisors (29956905397).

99537852491 is a wasteful number, since it uses less digits than its factorization.

99537852491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56204362.

The product of its digits is 24494400, while the sum is 62.

The spelling of 99537852491 in words is "ninety-nine billion, five hundred thirty-seven million, eight hundred fifty-two thousand, four hundred ninety-one".