138825013780 has 24 divisors (see below), whose sum is σ = 291581313408. Its totient is φ = 55520713248.

The previous prime is 138825013729. The next prime is 138825013783. The reversal of 138825013780 is 87310528831.

138825013780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 138825013780.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138825013783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457624 + ... + 697903.

It is an arithmetic number, because the mean of its divisors is an integer number (12149221392).

Almost surely, 2^138825013780 is an apocalyptic number.

138825013780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138825013780 is an abundant number, since it is smaller than the sum of its proper divisors (152756299628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138825013780 is a wasteful number, since it uses less digits than its factorization.

138825013780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161543 (or 1161541 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 138825013780 in words is "one hundred thirty-eight billion, eight hundred twenty-five million, thirteen thousand, seven hundred eighty".