42990078880 has 48 divisors (see below), whose sum is σ = 116073216000. Its totient is φ = 14739455232.

The previous prime is 42990078823. The next prime is 42990078881. The reversal of 42990078880 is 8887009924.

It is not an unprimeable number, because it can be changed into a prime (42990078881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19190880 + ... + 19193119.

It is an arithmetic number, because the mean of its divisors is an integer number (2418192000).

Almost surely, 2^42990078880 is an apocalyptic number.

42990078880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42990078880 is an abundant number, since it is smaller than the sum of its proper divisors (73083137120).

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

42990078880 is a wasteful number, since it uses less digits than its factorization.

42990078880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38384021 (or 38384013 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 42990078880 in words is "forty-two billion, nine hundred ninety million, seventy-eight thousand, eight hundred eighty".