72798555144 has 64 divisors (see below), whose sum is σ = 211521254400. Its totient is φ = 20447049024.

The previous prime is 72798555101. The next prime is 72798555149. The reversal of 72798555144 is 44155589727.

It is not an unprimeable number, because it can be changed into a prime (72798555149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3662332 + ... + 3682155.

It is an arithmetic number, because the mean of its divisors is an integer number (3305019600).

Almost surely, 2^72798555144 is an apocalyptic number.

It is an amenable number.

72798555144 is an abundant number, since it is smaller than the sum of its proper divisors (138722699256).

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

72798555144 is a wasteful number, since it uses less digits than its factorization.

72798555144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7344562 (or 7344558 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 57.

The spelling of 72798555144 in words is "seventy-two billion, seven hundred ninety-eight million, five hundred fifty-five thousand, one hundred forty-four".