99497241837 has 48 divisors (see below), whose sum is σ = 169204497280. Its totient is φ = 56605713408.

The previous prime is 99497241787. The next prime is 99497241839. The reversal of 99497241837 is 73814279499.

99497241837 is a `hidden beast` number, since 99 + 497 + 24 + 1 + 8 + 37 = 666.

It is not a de Polignac number, because 99497241837 - 2¹⁰ = 99497240813 is a prime.

It is a super-2 number, since 2×99497241837² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99497241839) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10255773 + ... + 10265469.

Almost surely, 2^99497241837 is an apocalyptic number.

It is an amenable number.

99497241837 is a deficient number, since it is larger than the sum of its proper divisors (69707255443).

99497241837 is an equidigital number, since it uses as much as digits as its factorization.

99497241837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10179 (or 9940 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 99497241837 in words is "ninety-nine billion, four hundred ninety-seven million, two hundred forty-one thousand, eight hundred thirty-seven".