99753642244 has 27 divisors (see below), whose sum is σ = 177288485493. Its totient is φ = 49111545648.

The previous prime is 99753642239. The next prime is 99753642259. The reversal of 99753642244 is 44224635799.

The square root of 99753642244 is 315838.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 18136008900 + 81617633344 = 134670^2 + 285688^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 42321114 + ... + 42323470.

Almost surely, 2^99753642244 is an apocalyptic number.

99753642244 is the 315838-th square number.

It is an amenable number.

99753642244 is a deficient number, since it is larger than the sum of its proper divisors (77534843249).

99753642244 is an frugal number, since it uses more digits than its factorization.

99753642244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852 (or 2426 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 55.

The spelling of 99753642244 in words is "ninety-nine billion, seven hundred fifty-three million, six hundred forty-two thousand, two hundred forty-four".