39484423638 has 24 divisors (see below), whose sum is σ = 93326819976. Its totient is φ = 11964976800.

The previous prime is 39484423637. The next prime is 39484423661. The reversal of 39484423638 is 83632448493.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39484423631) 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, 99707943 + ... + 99708338.

It is an arithmetic number, because the mean of its divisors is an integer number (3888617499).

Almost surely, 2^39484423638 is an apocalyptic number.

39484423638 is an abundant number, since it is smaller than the sum of its proper divisors (53842396338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39484423638 is a wasteful number, since it uses less digits than its factorization.

39484423638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199416300 (or 199416297 counting only the distinct ones).

The product of its digits is 11943936, while the sum is 54.

The spelling of 39484423638 in words is "thirty-nine billion, four hundred eighty-four million, four hundred twenty-three thousand, six hundred thirty-eight".