138493302980 has 12 divisors (see below), whose sum is σ = 290835936300. Its totient is φ = 55397321184.

The previous prime is 138493302979. The next prime is 138493302989. The reversal of 138493302980 is 89203394831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 16618303744 + 121874999236 = 128912^2 + 349106^2 .

It is not an unprimeable number, because it can be changed into a prime (138493302989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3462332555 + ... + 3462332594.

It is an arithmetic number, because the mean of its divisors is an integer number (24236328025).

Almost surely, 2^138493302980 is an apocalyptic number.

138493302980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138493302980 is an abundant number, since it is smaller than the sum of its proper divisors (152342633320).

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

138493302980 is a wasteful number, since it uses less digits than its factorization.

138493302980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924665158 (or 6924665156 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The spelling of 138493302980 in words is "one hundred thirty-eight billion, four hundred ninety-three million, three hundred two thousand, nine hundred eighty".