42646804402 has 8 divisors (see below), whose sum is σ = 64172006316. Its totient is φ = 21256135632.

The previous prime is 42646804379. The next prime is 42646804433. The reversal of 42646804402 is 20440864624.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 42303851041 + 342953361 = 205679^2 + 18519^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33632493 + ... + 33633760.

Almost surely, 2^42646804402 is an apocalyptic number.

42646804402 is a deficient number, since it is larger than the sum of its proper divisors (21525201914).

42646804402 is a wasteful number, since it uses less digits than its factorization.

42646804402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67266572.

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 42646804402 in words is "forty-two billion, six hundred forty-six million, eight hundred four thousand, four hundred two".