72506070042 has 32 divisors (see below), whose sum is σ = 166421606400. Its totient is φ = 20629339248.

The previous prime is 72506070037. The next prime is 72506070073. The reversal of 72506070042 is 24007060527.

It is a junction number, because it is equal to n+sod(n) for n = 72506069985 and 72506070012.

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, 3601542 + ... + 3621617.

It is an arithmetic number, because the mean of its divisors is an integer number (5200675200).

Almost surely, 2^72506070042 is an apocalyptic number.

72506070042 is an abundant number, since it is smaller than the sum of its proper divisors (93915536358).

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

72506070042 is a wasteful number, since it uses less digits than its factorization.

72506070042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223410.

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 72506070042 in words is "seventy-two billion, five hundred six million, seventy thousand, forty-two".