138580691604 has 24 divisors (see below), whose sum is σ = 323363529888. Its totient is φ = 46192337760.

The previous prime is 138580691581. The next prime is 138580691651. The reversal of 138580691604 is 406196085831.

138580691604 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396574 + ... + 659114.

It is an arithmetic number, because the mean of its divisors is an integer number (13473480412).

Almost surely, 2^138580691604 is an apocalyptic number.

It is an amenable number.

138580691604 is an abundant number, since it is smaller than the sum of its proper divisors (184782838284).

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

138580691604 is a wasteful number, since it uses less digits than its factorization.

138580691604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306535 (or 306533 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 51.

The spelling of 138580691604 in words is "one hundred thirty-eight billion, five hundred eighty million, six hundred ninety-one thousand, six hundred four".