138351265935 has 32 divisors (see below), whose sum is σ = 224210331072. Its totient is φ = 72843863040.

The previous prime is 138351265907. The next prime is 138351266003. The reversal of 138351265935 is 539562153831.

It is a Cunningham number, because it is equal to 371956²-1.

It is not a de Polignac number, because 138351265935 - 2¹⁶ = 138351200399 is a prime.

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, 185977 + ... + 557933.

It is an arithmetic number, because the mean of its divisors is an integer number (7006572846).

Almost surely, 2^138351265935 is an apocalyptic number.

138351265935 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

138351265935 is a deficient number, since it is larger than the sum of its proper divisors (85859065137).

138351265935 is a wasteful number, since it uses less digits than its factorization.

138351265935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372283.

The product of its digits is 2916000, while the sum is 51.

The spelling of 138351265935 in words is "one hundred thirty-eight billion, three hundred fifty-one million, two hundred sixty-five thousand, nine hundred thirty-five".