73815349995396 has 81 divisors (see below), whose sum is σ = 187077287680101. Its totient is φ = 24540868785024.

The previous prime is 73815349995377. The next prime is 73815349995407. The reversal of 73815349995396 is 69359994351837.

The square root of 73815349995396 is 8591586.

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

73815349995396 is a `hidden beast` number, since 7 + 3 + 8 + 1 + 5 + 3 + 499 + 95 + 39 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8277646868100 + 65537703127296 = 2877090^2 + 8095536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 22320938775 + ... + 22320942081.

Almost surely, 2^{73815349995396} is an apocalyptic number.

73815349995396 is the 8591586-th square number.

It is an amenable number.

73815349995396 is an abundant number, since it is smaller than the sum of its proper divisors (113261937684705).

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

73815349995396 is an frugal number, since it uses more digits than its factorization.

73815349995396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7490 (or 3745 counting only the distinct ones).

The product of its digits is 5952139200, while the sum is 81.

The spelling of 73815349995396 in words is "seventy-three trillion, eight hundred fifteen billion, three hundred forty-nine million, nine hundred ninety-five thousand, three hundred ninety-six".