138741890752 has 28 divisors (see below), whose sum is σ = 275418743040. Its totient is φ = 69345042176.

The previous prime is 138741890653. The next prime is 138741890803. The reversal of 138741890752 is 257098147831.

It is a junction number, because it is equal to n+sod(n) for n = 138741890693 and 138741890702.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231427 + ... + 575362.

It is an arithmetic number, because the mean of its divisors is an integer number (9836383680).

Almost surely, 2^138741890752 is an apocalyptic number.

It is an amenable number.

138741890752 is a deficient number, since it is larger than the sum of its proper divisors (136676852288).

138741890752 is an equidigital number, since it uses as much as digits as its factorization.

138741890752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809488 (or 809478 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 55.

The spelling of 138741890752 in words is "one hundred thirty-eight billion, seven hundred forty-one million, eight hundred ninety thousand, seven hundred fifty-two".