42990918144 has 40 divisors (see below), whose sum is σ = 114530496960. Its totient is φ = 14330305536.

The previous prime is 42990918083. The next prime is 42990918161. The reversal of 42990918144 is 44181909924.

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, 13992904 + ... + 13995975.

It is an arithmetic number, because the mean of its divisors is an integer number (2863262424).

Almost surely, 2^42990918144 is an apocalyptic number.

It is an amenable number.

42990918144 is an abundant number, since it is smaller than the sum of its proper divisors (71539578816).

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

42990918144 is an equidigital number, since it uses as much as digits as its factorization.

42990918144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27988900 (or 27988884 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 42990918144 in words is "forty-two billion, nine hundred ninety million, nine hundred eighteen thousand, one hundred forty-four".