138837382236502 has 4 divisors (see below), whose sum is σ = 208256073354756. Its totient is φ = 69418691118250.

The previous prime is 138837382236473. The next prime is 138837382236517. The reversal of 138837382236502 is 205632283738831.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×138837382236502² (a number of 29 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 as a sum of consecutive naturals, namely, 34709345559124 + ... + 34709345559127.

It is an arithmetic number, because the mean of its divisors is an integer number (52064018338689).

Almost surely, 2^{138837382236502} is an apocalyptic number.

138837382236502 is a deficient number, since it is larger than the sum of its proper divisors (69418691118254).

138837382236502 is an equidigital number, since it uses as much as digits as its factorization.

138837382236502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69418691118253.

The product of its (nonzero) digits is 69672960, while the sum is 61.

The spelling of 138837382236502 in words is "one hundred thirty-eight trillion, eight hundred thirty-seven billion, three hundred eighty-two million, two hundred thirty-six thousand, five hundred two".