42292146978 has 16 divisors (see below), whose sum is σ = 93982548960. Its totient is φ = 14097382308.

The previous prime is 42292146959. The next prime is 42292146979. The reversal of 42292146978 is 87964129224.

It is a happy number.

42292146978 is a `hidden beast` number, since 4 + 22 + 92 + 1 + 469 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 783187907 = 42292146978 / (4 + 2 + 2 + 9 + 2 + 1 + 4 + 6 + 9 + 7 + 8).

It is not an unprimeable number, because it can be changed into a prime (42292146979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391593900 + ... + 391594007.

It is an arithmetic number, because the mean of its divisors is an integer number (5873909310).

Almost surely, 2^42292146978 is an apocalyptic number.

42292146978 is an abundant number, since it is smaller than the sum of its proper divisors (51690401982).

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

42292146978 is a wasteful number, since it uses less digits than its factorization.

42292146978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783187918 (or 783187912 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 54.

The spelling of 42292146978 in words is "forty-two billion, two hundred ninety-two million, one hundred forty-six thousand, nine hundred seventy-eight".