42904018944 has 168 divisors, whose sum is σ = 129331071792. Its totient is φ = 13679001600.

The previous prime is 42904018939. The next prime is 42904018961. The reversal of 42904018944 is 44981040924.

42904018944 is a `hidden beast` number, since 42 + 90 + 401 + 89 + 44 = 666.

It is a super-2 number, since 2×42904018944² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42904018944.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1683094 + ... + 1708394.

Almost surely, 2^42904018944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42904018944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64665535896).

42904018944 is an abundant number, since it is smaller than the sum of its proper divisors (86427052848).

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

42904018944 is a wasteful number, since it uses less digits than its factorization.

42904018944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25356 (or 25329 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 42904018944 in words is "forty-two billion, nine hundred four million, eighteen thousand, nine hundred forty-four".