138251326382 has 32 divisors (see below), whose sum is σ = 235441588032. Its totient is φ = 60404788224.

The previous prime is 138251326333. The next prime is 138251326453. The reversal of 138251326382 is 283623152831.

It is a happy number.

It is a super-2 number, since 2×138251326382² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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, 1133693 + ... + 1249704.

It is an arithmetic number, because the mean of its divisors is an integer number (7357549626).

Almost surely, 2^138251326382 is an apocalyptic number.

138251326382 is a deficient number, since it is larger than the sum of its proper divisors (97190261650).

138251326382 is a wasteful number, since it uses less digits than its factorization.

138251326382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2383532.

The product of its digits is 414720, while the sum is 44.

The spelling of 138251326382 in words is "one hundred thirty-eight billion, two hundred fifty-one million, three hundred twenty-six thousand, three hundred eighty-two".