138761457866504 has 16 divisors (see below), whose sum is σ = 283830254727120. Its totient is φ = 63073389939280.

The previous prime is 138761457866501. The next prime is 138761457866569. The reversal of 138761457866504 is 405668754167831.

It is not an unprimeable number, because it can be changed into a prime (138761457866501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 788417374154 + ... + 788417374329.

It is an arithmetic number, because the mean of its divisors is an integer number (17739390920445).

Almost surely, 2^{138761457866504} is an apocalyptic number.

It is an amenable number.

138761457866504 is an abundant number, since it is smaller than the sum of its proper divisors (145068796860616).

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

138761457866504 is a wasteful number, since it uses less digits than its factorization.

138761457866504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576834748500 (or 1576834748496 counting only the distinct ones).

The product of its (nonzero) digits is 812851200, while the sum is 71.

The spelling of 138761457866504 in words is "one hundred thirty-eight trillion, seven hundred sixty-one billion, four hundred fifty-seven million, eight hundred sixty-six thousand, five hundred four".