138513343748 has 48 divisors (see below), whose sum is σ = 266100387840. Its totient is φ = 62692216704.

The previous prime is 138513343723. The next prime is 138513343763. The reversal of 138513343748 is 847343315831.

It is a super-2 number, since 2×138513343748² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 138513343696 and 138513343705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6159461 + ... + 6181907.

It is an arithmetic number, because the mean of its divisors is an integer number (5543758080).

Almost surely, 2^138513343748 is an apocalyptic number.

It is an amenable number.

138513343748 is a deficient number, since it is larger than the sum of its proper divisors (127587044092).

138513343748 is a wasteful number, since it uses less digits than its factorization.

138513343748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24756 (or 24754 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 50.

The spelling of 138513343748 in words is "one hundred thirty-eight billion, five hundred thirteen million, three hundred forty-three thousand, seven hundred forty-eight".