39743612164 has 9 divisors (see below), whose sum is σ = 69552019047. Its totient is φ = 19871606724.

The previous prime is 39743612137. The next prime is 39743612179. The reversal of 39743612164 is 46121634793.

The square root of 39743612164 is 199358.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 348877 + ... + 448555.

Almost surely, 2^39743612164 is an apocalyptic number.

39743612164 is the 199358-th square number.

It is an amenable number.

39743612164 is a deficient number, since it is larger than the sum of its proper divisors (29808406883).

39743612164 is an frugal number, since it uses more digits than its factorization.

39743612164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199362 (or 99681 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

It can be divided in two parts, 397436 and 12164, that added together give a square (409600 = 640²).

The spelling of 39743612164 in words is "thirty-nine billion, seven hundred forty-three million, six hundred twelve thousand, one hundred sixty-four".