42402406466 has 12 divisors (see below), whose sum is σ = 73987872678. Its totient is φ = 18172459872.

The previous prime is 42402406439. The next prime is 42402406477. The reversal of 42402406466 is 66460420424.

It can be written as a sum of positive squares in only one way, i.e., 42252858025 + 149548441 = 205555^2 + 12229^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216338711 + ... + 216338906.

Almost surely, 2^42402406466 is an apocalyptic number.

42402406466 is a deficient number, since it is larger than the sum of its proper divisors (31585466212).

42402406466 is a wasteful number, since it uses less digits than its factorization.

42402406466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432677633 (or 432677626 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 38.

The spelling of 42402406466 in words is "forty-two billion, four hundred two million, four hundred six thousand, four hundred sixty-six".