72698847408 has 160 divisors (see below), whose sum is σ = 231041521920. Its totient is φ = 21701053440.

The previous prime is 72698847407. The next prime is 72698847421. The reversal of 72698847408 is 80474889627.

72698847408 is a `hidden beast` number, since 72 + 6 + 98 + 8 + 474 + 0 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (72698847401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 204216 + ... + 432552.

It is an arithmetic number, because the mean of its divisors is an integer number (1444009512).

Almost surely, 2^72698847408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72698847408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115520760960).

72698847408 is an abundant number, since it is smaller than the sum of its proper divisors (158342674512).

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

72698847408 is a wasteful number, since it uses less digits than its factorization.

72698847408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228432 (or 228420 counting only the distinct ones).

The product of its (nonzero) digits is 43352064, while the sum is 63.

The spelling of 72698847408 in words is "seventy-two billion, six hundred ninety-eight million, eight hundred forty-seven thousand, four hundred eight".