138161159687892 has 96 divisors (see below), whose sum is σ = 351889454020608. Its totient is φ = 41842440000000.

The previous prime is 138161159687807. The next prime is 138161159688023. The reversal of 138161159687892 is 298786951161831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2362467292 + ... + 2362525772.

It is an arithmetic number, because the mean of its divisors is an integer number (3665515146048).

Almost surely, 2^{138161159687892} is an apocalyptic number.

138161159687892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138161159687892 is an abundant number, since it is smaller than the sum of its proper divisors (213728294332716).

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

138161159687892 is a wasteful number, since it uses less digits than its factorization.

138161159687892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68701 (or 68699 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 75.

The spelling of 138161159687892 in words is "one hundred thirty-eight trillion, one hundred sixty-one billion, one hundred fifty-nine million, six hundred eighty-seven thousand, eight hundred ninety-two".