42406662808 has 16 divisors (see below), whose sum is σ = 79539463080. Its totient is φ = 21196139328.

The previous prime is 42406662803. The next prime is 42406662817. The reversal of 42406662808 is 80826660424.

42406662808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×42406662808² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42406662803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873910 + ... + 921157.

Almost surely, 2^42406662808 is an apocalyptic number.

It is an amenable number.

42406662808 is a deficient number, since it is larger than the sum of its proper divisors (37132800272).

42406662808 is a wasteful number, since it uses less digits than its factorization.

42406662808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798026 (or 1798022 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 46.

The spelling of 42406662808 in words is "forty-two billion, four hundred six million, six hundred sixty-two thousand, eight hundred eight".