3939246900005 has 4 divisors (see below), whose sum is σ = 4727096280012. Its totient is φ = 3151397520000.

The previous prime is 3939246899983. The next prime is 3939246900059. The reversal of 3939246900005 is 5000096429393.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1697201856289 + 2242045043716 = 1302767^2 + 1497346^2 .

It is not a de Polignac number, because 3939246900005 - 2²⁸ = 3938978464549 is a prime.

It is a super-2 number, since 2×3939246900005² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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, 393924689996 + ... + 393924690005.

It is an arithmetic number, because the mean of its divisors is an integer number (1181774070003).

Almost surely, 2^{3939246900005} is an apocalyptic number.

It is an amenable number.

3939246900005 is a deficient number, since it is larger than the sum of its proper divisors (787849380007).

3939246900005 is an equidigital number, since it uses as much as digits as its factorization.

3939246900005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787849380006.

The product of its (nonzero) digits is 1574640, while the sum is 50.

The spelling of 3939246900005 in words is "three trillion, nine hundred thirty-nine billion, two hundred forty-six million, nine hundred thousand, five".