139773597638 has 8 divisors (see below), whose sum is σ = 209667193632. Its totient is φ = 69884533096.

The previous prime is 139773597589. The next prime is 139773597647. The reversal of 139773597638 is 836795377931.

139773597638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054670 + ... + 1179777.

It is an arithmetic number, because the mean of its divisors is an integer number (26208399204).

Almost surely, 2^139773597638 is an apocalyptic number.

139773597638 is a deficient number, since it is larger than the sum of its proper divisors (69893595994).

139773597638 is a wasteful number, since it uses less digits than its factorization.

139773597638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2265726.

The product of its digits is 180033840, while the sum is 68.

The spelling of 139773597638 in words is "one hundred thirty-nine billion, seven hundred seventy-three million, five hundred ninety-seven thousand, six hundred thirty-eight".