72165847874 has 8 divisors (see below), whose sum is σ = 108938254908. Its totient is φ = 35853096240.

The previous prime is 72165847799. The next prime is 72165847961. The reversal of 72165847874 is 47874856127.

It can be written as a sum of positive squares in 2 ways, for example, as 68666533849 + 3499314025 = 262043^2 + 59155^2 .

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

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, 114913457 + ... + 114914084.

Almost surely, 2^72165847874 is an apocalyptic number.

72165847874 is a deficient number, since it is larger than the sum of its proper divisors (36772407034).

72165847874 is a wasteful number, since it uses less digits than its factorization.

72165847874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229827700.

The product of its digits is 21073920, while the sum is 59.

The spelling of 72165847874 in words is "seventy-two billion, one hundred sixty-five million, eight hundred forty-seven thousand, eight hundred seventy-four".