138802862722485 has 32 divisors (see below), whose sum is σ = 240382060490880. Its totient is φ = 67986845353728.

The previous prime is 138802862722471. The next prime is 138802862722603. The reversal of 138802862722485 is 584227268208831.

It is not a de Polignac number, because 138802862722485 - 2⁵ = 138802862722453 is a prime.

It is a super-2 number, since 2×138802862722485² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1806584815 + ... + 1806661644.

It is an arithmetic number, because the mean of its divisors is an integer number (7511939390340).

Almost surely, 2^{138802862722485} is an apocalyptic number.

138802862722485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138802862722485 is a deficient number, since it is larger than the sum of its proper divisors (101579197768395).

138802862722485 is a wasteful number, since it uses less digits than its factorization.

138802862722485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613246677.

The product of its (nonzero) digits is 165150720, while the sum is 66.

The spelling of 138802862722485 in words is "one hundred thirty-eight trillion, eight hundred two billion, eight hundred sixty-two million, seven hundred twenty-two thousand, four hundred eighty-five".