72094398016 has 21 divisors (see below), whose sum is σ = 143066583691. Its totient is φ = 36046124992.

The previous prime is 72094397951. The next prime is 72094398037. The reversal of 72094398016 is 61089349027.

The square root of 72094398016 is 268504.

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

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2131251 + ... + 2164813.

Almost surely, 2^72094398016 is an apocalyptic number.

72094398016 is the 268504-th square number.

It is an amenable number.

72094398016 is a deficient number, since it is larger than the sum of its proper divisors (70972185675).

72094398016 is an frugal number, since it uses more digits than its factorization.

72094398016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67138 (or 33565 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

Multiplying 72094398016 by its sum of digits (49), we get a square (3532625502784 = 1879528²).

The spelling of 72094398016 in words is "seventy-two billion, ninety-four million, three hundred ninety-eight thousand, sixteen".