138803242252786 has 16 divisors (see below), whose sum is σ = 211744360316160. Its totient is φ = 68231265379200.

The previous prime is 138803242252721. The next prime is 138803242252793. The reversal of 138803242252786 is 687252242308831.

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, 2369111866 + ... + 2369170453.

It is an arithmetic number, because the mean of its divisors is an integer number (13234022519760).

Almost surely, 2^{138803242252786} is an apocalyptic number.

138803242252786 is a deficient number, since it is larger than the sum of its proper divisors (72941118063374).

138803242252786 is a wasteful number, since it uses less digits than its factorization.

138803242252786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738282569.

The product of its (nonzero) digits is 61931520, while the sum is 61.

The spelling of 138803242252786 in words is "one hundred thirty-eight trillion, eight hundred three billion, two hundred forty-two million, two hundred fifty-two thousand, seven hundred eighty-six".