9216639042 has 16 divisors (see below), whose sum is σ = 19851222720. Its totient is φ = 2835888912.

The previous prime is 9216638983. The next prime is 9216639067. The reversal of 9216639042 is 2409366129.

It is a junction number, because it is equal to n+sod(n) for n = 9216638985 and 9216639003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59080942 + ... + 59081097.

It is an arithmetic number, because the mean of its divisors is an integer number (1240701420).

Almost surely, 2^9216639042 is an apocalyptic number.

9216639042 is an abundant number, since it is smaller than the sum of its proper divisors (10634583678).

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

9216639042 is a wasteful number, since it uses less digits than its factorization.

9216639042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118162057.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 9216639042 is about 96003.3282860547. The cubic root of 9216639042 is about 2096.6415738484.

The spelling of 9216639042 in words is "nine billion, two hundred sixteen million, six hundred thirty-nine thousand, forty-two".