42420922624 has 18 divisors (see below), whose sum is σ = 84676139030. Its totient is φ = 21210461184.

The previous prime is 42420922619. The next prime is 42420922639. The reversal of 42420922624 is 42622902424.

It can be written as a sum of positive squares in only one way, i.e., 38824761600 + 3596161024 = 197040^2 + 59968^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82853109 + ... + 82853620.

Almost surely, 2^42420922624 is an apocalyptic number.

It is an amenable number.

42420922624 is a deficient number, since it is larger than the sum of its proper divisors (42255216406).

42420922624 is an equidigital number, since it uses as much as digits as its factorization.

42420922624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165706745 (or 165706731 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 37.

The spelling of 42420922624 in words is "forty-two billion, four hundred twenty million, nine hundred twenty-two thousand, six hundred twenty-four".