138357975511 has 16 divisors (see below), whose sum is σ = 161622650880. Its totient is φ = 115972329600.

The previous prime is 138357975499. The next prime is 138357975521. The reversal of 138357975511 is 115579753831.

138357975511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 138357975511 - 2²⁷ = 138223757783 is a prime.

It is a super-2 number, since 2×138357975511² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138357975521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220050 + ... + 570208.

It is an arithmetic number, because the mean of its divisors is an integer number (10101415680).

Almost surely, 2^138357975511 is an apocalyptic number.

138357975511 is a deficient number, since it is larger than the sum of its proper divisors (23264675369).

138357975511 is a wasteful number, since it uses less digits than its factorization.

138357975511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351414.

The product of its digits is 3969000, while the sum is 55.

The spelling of 138357975511 in words is "one hundred thirty-eight billion, three hundred fifty-seven million, nine hundred seventy-five thousand, five hundred eleven".