99673147518736 has 45 divisors (see below), whose sum is σ = 212269730568469. Its totient is φ = 45305776472000.

The previous prime is 99673147518733. The next prime is 99673147518809. The reversal of 99673147518736 is 63781574137699.

The square root of 99673147518736 is 9983644.

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., 5407689797136 + 94265457721600 = 2325444^2 + 9709040^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99673147518731) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 439166886 + ... + 439393786.

Almost surely, 2^{99673147518736} is an apocalyptic number.

99673147518736 is the 9983644-th square number.

It is an amenable number.

99673147518736 is an abundant number, since it is smaller than the sum of its proper divisors (112596583049733).

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

99673147518736 is an frugal number, since it uses more digits than its factorization.

99673147518736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453832 (or 226914 counting only the distinct ones).

The product of its digits is 1440270720, while the sum is 76.

The spelling of 99673147518736 in words is "ninety-nine trillion, six hundred seventy-three billion, one hundred forty-seven million, five hundred eighteen thousand, seven hundred thirty-six".