42378125338920 has 128 divisors (see below), whose sum is σ = 145715152435200. Its totient is φ = 9658513802496.

The previous prime is 42378125338889. The next prime is 42378125338951. The reversal of 42378125338920 is 2983352187324.

It is an interprime number because it is at equal distance from previous prime (42378125338889) and next prime (42378125338951).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72403260 + ... + 72986219.

It is an arithmetic number, because the mean of its divisors is an integer number (1138399628400).

Almost surely, 2^{42378125338920} is an apocalyptic number.

42378125338920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42378125338920 is an abundant number, since it is smaller than the sum of its proper divisors (103337027096280).

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

42378125338920 is a wasteful number, since it uses less digits than its factorization.

42378125338920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145389847 (or 145389843 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 42378125338920 in words is "forty-two trillion, three hundred seventy-eight billion, one hundred twenty-five million, three hundred thirty-eight thousand, nine hundred twenty".