72450857282 has 8 divisors (see below), whose sum is σ = 108746268876. Its totient is φ = 36202100992.

The previous prime is 72450857197. The next prime is 72450857291. The reversal of 72450857282 is 28275805427.

It can be written as a sum of positive squares in 2 ways, for example, as 52519347241 + 19931510041 = 229171^2 + 141179^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 72450857282.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11659943 + ... + 11666154.

Almost surely, 2^72450857282 is an apocalyptic number.

72450857282 is a deficient number, since it is larger than the sum of its proper divisors (36295411594).

72450857282 is a wasteful number, since it uses less digits than its factorization.

72450857282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23327652.

The product of its (nonzero) digits is 2508800, while the sum is 50.

The spelling of 72450857282 in words is "seventy-two billion, four hundred fifty million, eight hundred fifty-seven thousand, two hundred eighty-two".