72150157858 has 8 divisors (see below), whose sum is σ = 108237168720. Its totient is φ = 36071101620.

The previous prime is 72150157847. The next prime is 72150157867. The reversal of 72150157858 is 85875105127.

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, 1965928 + ... + 2002291.

It is an arithmetic number, because the mean of its divisors is an integer number (13529646090).

Almost surely, 2^72150157858 is an apocalyptic number.

72150157858 is a deficient number, since it is larger than the sum of its proper divisors (36087010862).

72150157858 is a wasteful number, since it uses less digits than its factorization.

72150157858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3977312.

The product of its (nonzero) digits is 784000, while the sum is 49.

The spelling of 72150157858 in words is "seventy-two billion, one hundred fifty million, one hundred fifty-seven thousand, eight hundred fifty-eight".