42090478522 has 16 divisors (see below), whose sum is σ = 63819614880. Its totient is φ = 20818367568.

The previous prime is 42090478487. The next prime is 42090478567. The reversal of 42090478522 is 22587409024.

It is a happy number.

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, 196288 + ... + 350299.

It is an arithmetic number, because the mean of its divisors is an integer number (3988725930).

Almost surely, 2^42090478522 is an apocalyptic number.

42090478522 is a deficient number, since it is larger than the sum of its proper divisors (21729136358).

42090478522 is a wasteful number, since it uses less digits than its factorization.

42090478522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547005.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 42090478522 in words is "forty-two billion, ninety million, four hundred seventy-eight thousand, five hundred twenty-two".