138883781898148 has 24 divisors (see below), whose sum is σ = 277882486382592. Its totient is φ = 59496994545024.

The previous prime is 138883781898131. The next prime is 138883781898181. The reversal of 138883781898148 is 841898187388831.

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, 1026025636 + ... + 1026160987.

It is an arithmetic number, because the mean of its divisors is an integer number (11578436932608).

Almost surely, 2^{138883781898148} is an apocalyptic number.

It is an amenable number.

138883781898148 is an abundant number, since it is smaller than the sum of its proper divisors (138998704484444).

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

138883781898148 is a wasteful number, since it uses less digits than its factorization.

138883781898148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052189051 (or 2052189049 counting only the distinct ones).

The product of its digits is 4756340736, while the sum is 85.

The spelling of 138883781898148 in words is "one hundred thirty-eight trillion, eight hundred eighty-three billion, seven hundred eighty-one million, eight hundred ninety-eight thousand, one hundred forty-eight".