42191934912 has 56 divisors (see below), whose sum is σ = 124036480400. Its totient is φ = 14063977728.

The previous prime is 42191934901. The next prime is 42191934937. The reversal of 42191934912 is 21943919124.

42191934912 is a `hidden beast` number, since 421 + 91 + 93 + 49 + 12 = 666.

42191934912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

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, 12206587 + ... + 12210042.

It is an arithmetic number, because the mean of its divisors is an integer number (2214937150).

Almost surely, 2^42191934912 is an apocalyptic number.

It is an amenable number.

42191934912 is an abundant number, since it is smaller than the sum of its proper divisors (81844545488).

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

42191934912 is a wasteful number, since it uses less digits than its factorization.

42191934912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24416650 (or 24416634 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 42191934912 in words is "forty-two billion, one hundred ninety-one million, nine hundred thirty-four thousand, nine hundred twelve".