139373795584 has 27 divisors (see below), whose sum is σ = 278215085953. Its totient is φ = 69683911168.

The previous prime is 139373795557. The next prime is 139373795591. The reversal of 139373795584 is 485597373931.

The square root of 139373795584 is 373328.

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

It can be written as a sum of positive squares in only one way, i.e., 5218617600 + 134155177984 = 72240^2 + 366272^2 .

It is a Harshad number since it is a multiple of its sum of digits (64).

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, 5961582 + ... + 5984914.

Almost surely, 2^139373795584 is an apocalyptic number.

139373795584 is the 373328-th square number.

It is an amenable number.

139373795584 is a deficient number, since it is larger than the sum of its proper divisors (138841290369).

139373795584 is an frugal number, since it uses more digits than its factorization.

139373795584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46682 (or 23335 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 64.

Multiplying 139373795584 by its sum of digits (64), we get a square (8919922917376 = 2986624²).

139373795584 divided by its sum of digits (64) gives a square (2177715556 = 46666²).

The spelling of 139373795584 in words is "one hundred thirty-nine billion, three hundred seventy-three million, seven hundred ninety-five thousand, five hundred eighty-four".