99739253124 has 120 divisors (see below), whose sum is σ = 298377148608. Its totient is φ = 28459563840.

The previous prime is 99739253111. The next prime is 99739253177. The reversal of 99739253124 is 42135293799.

It is a super-2 number, since 2×99739253124² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1724719 + ... + 1781609.

Almost surely, 2^99739253124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99739253124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149188574304).

99739253124 is an abundant number, since it is smaller than the sum of its proper divisors (198637895484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99739253124 is a wasteful number, since it uses less digits than its factorization.

99739253124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57687 (or 57676 counting only the distinct ones).

The product of its digits is 3674160, while the sum is 54.

The spelling of 99739253124 in words is "ninety-nine billion, seven hundred thirty-nine million, two hundred fifty-three thousand, one hundred twenty-four".