39855472623 has 12 divisors (see below), whose sum is σ = 57787913040. Its totient is φ = 26469285696.

The previous prime is 39855472621. The next prime is 39855472633. The reversal of 39855472623 is 32627455893.

39855472623 is a `hidden beast` number, since 3 + 9 + 8 + 5 + 5 + 4 + 7 + 2 + 623 = 666.

It is not a de Polignac number, because 39855472623 - 2¹ = 39855472621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39855472623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39855472621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8416618 + ... + 8421351.

It is an arithmetic number, because the mean of its divisors is an integer number (4815659420).

Almost surely, 2^39855472623 is an apocalyptic number.

39855472623 is a deficient number, since it is larger than the sum of its proper divisors (17932440417).

39855472623 is a wasteful number, since it uses less digits than its factorization.

39855472623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16838238 (or 16838235 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 39855472623 in words is "thirty-nine billion, eight hundred fifty-five million, four hundred seventy-two thousand, six hundred twenty-three".