42890374988 has 24 divisors (see below), whose sum is σ = 77393940624. Its totient is φ = 20782440000.

The previous prime is 42890374957. The next prime is 42890374997. The reversal of 42890374988 is 88947309824.

It is a super-2 number, since 2×42890374988² (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 42890374988.

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, 540143 + ... + 614438.

It is an arithmetic number, because the mean of its divisors is an integer number (3224747526).

Almost surely, 2^42890374988 is an apocalyptic number.

It is an amenable number.

42890374988 is a deficient number, since it is larger than the sum of its proper divisors (34503565636).

42890374988 is a wasteful number, since it uses less digits than its factorization.

42890374988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154873 (or 1154871 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 62.

The spelling of 42890374988 in words is "forty-two billion, eight hundred ninety million, three hundred seventy-four thousand, nine hundred eighty-eight".