42790524278 has 32 divisors (see below), whose sum is σ = 65195421696. Its totient is φ = 21061853568.

The previous prime is 42790524269. The next prime is 42790524313. The reversal of 42790524278 is 87242509724.

It is a super-2 number, since 2×42790524278² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23471675 + ... + 23473497.

It is an arithmetic number, because the mean of its divisors is an integer number (2037356928).

Almost surely, 2^42790524278 is an apocalyptic number.

42790524278 is a deficient number, since it is larger than the sum of its proper divisors (22404897418).

42790524278 is a wasteful number, since it uses less digits than its factorization.

42790524278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588.

The product of its (nonzero) digits is 2257920, while the sum is 50.

The spelling of 42790524278 in words is "forty-two billion, seven hundred ninety million, five hundred twenty-four thousand, two hundred seventy-eight".