72738066198 has 16 divisors (see below), whose sum is σ = 166258437120. Its totient is φ = 20782304616.

The previous prime is 72738066109. The next prime is 72738066211. The reversal of 72738066198 is 89166083727.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 865929318 + ... + 865929401.

It is an arithmetic number, because the mean of its divisors is an integer number (10391152320).

Almost surely, 2^72738066198 is an apocalyptic number.

72738066198 is an abundant number, since it is smaller than the sum of its proper divisors (93520370922).

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

72738066198 is a wasteful number, since it uses less digits than its factorization.

72738066198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731858731.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 72738066198 in words is "seventy-two billion, seven hundred thirty-eight million, sixty-six thousand, one hundred ninety-eight".