423939630634 has 8 divisors (see below), whose sum is σ = 684825557220. Its totient is φ = 195664444896.

The previous prime is 423939630629. The next prime is 423939630649. The reversal of 423939630634 is 436036939324.

It can be written as a sum of positive squares in 2 ways, for example, as 315728238609 + 108211392025 = 561897^2 + 328955^2 .

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, 8152685179 + ... + 8152685230.

Almost surely, 2^423939630634 is an apocalyptic number.

423939630634 is a deficient number, since it is larger than the sum of its proper divisors (260885926586).

423939630634 is a wasteful number, since it uses less digits than its factorization.

423939630634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16305370424.

The product of its (nonzero) digits is 7558272, while the sum is 52.

The spelling of 423939630634 in words is "four hundred twenty-three billion, nine hundred thirty-nine million, six hundred thirty thousand, six hundred thirty-four".