472938866638 has 8 divisors (see below), whose sum is σ = 810752342832. Its totient is φ = 202688085696.

The previous prime is 472938866623. The next prime is 472938866677. The reversal of 472938866638 is 836668839274.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16890673795 + ... + 16890673822.

It is an arithmetic number, because the mean of its divisors is an integer number (101344042854).

Almost surely, 2^472938866638 is an apocalyptic number.

472938866638 is a deficient number, since it is larger than the sum of its proper divisors (337813476194).

472938866638 is a wasteful number, since it uses less digits than its factorization.

472938866638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33781347626.

The product of its digits is 501645312, while the sum is 70.

The spelling of 472938866638 in words is "four hundred seventy-two billion, nine hundred thirty-eight million, eight hundred sixty-six thousand, six hundred thirty-eight".