138926282980 has 24 divisors (see below), whose sum is σ = 294042405888. Its totient is φ = 55132949088.

The previous prime is 138926282953. The next prime is 138926282983. The reversal of 138926282980 is 89282629831.

It is not an unprimeable number, because it can be changed into a prime (138926282983) 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, 27345154 + ... + 27350233.

It is an arithmetic number, because the mean of its divisors is an integer number (12251766912).

Almost surely, 2^138926282980 is an apocalyptic number.

138926282980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

138926282980 is an abundant number, since it is smaller than the sum of its proper divisors (155116122908).

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

138926282980 is a wasteful number, since it uses less digits than its factorization.

138926282980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54695523 (or 54695521 counting only the distinct ones).

The product of its (nonzero) digits is 5971968, while the sum is 58.

The spelling of 138926282980 in words is "one hundred thirty-eight billion, nine hundred twenty-six million, two hundred eighty-two thousand, nine hundred eighty".