72735652998 has 32 divisors (see below), whose sum is σ = 162664324320. Its totient is φ = 24090786720.

The previous prime is 72735652973. The next prime is 72735653047. The reversal of 72735652998 is 89925653727.

72735652998 is a `hidden beast` number, since 72 + 7 + 35 + 6 + 529 + 9 + 8 = 666.

It is a super-3 number, since 3×72735652998³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4281193 + ... + 4298148.

It is an arithmetic number, because the mean of its divisors is an integer number (5083260135).

Almost surely, 2^72735652998 is an apocalyptic number.

72735652998 is an abundant number, since it is smaller than the sum of its proper divisors (89928671322).

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

72735652998 is a wasteful number, since it uses less digits than its factorization.

72735652998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8579509 (or 8579503 counting only the distinct ones).

The product of its digits is 57153600, while the sum is 63.

The spelling of 72735652998 in words is "seventy-two billion, seven hundred thirty-five million, six hundred fifty-two thousand, nine hundred ninety-eight".