138980963464 has 128 divisors (see below), whose sum is σ = 327466022400. Its totient is φ = 53917839360.

The previous prime is 138980963423. The next prime is 138980963483. The reversal of 138980963464 is 464369089831.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7251334 + ... + 7270474.

It is an arithmetic number, because the mean of its divisors is an integer number (2558328300).

Almost surely, 2^138980963464 is an apocalyptic number.

138980963464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138980963464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163733011200).

138980963464 is an abundant number, since it is smaller than the sum of its proper divisors (188485058936).

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

138980963464 is a wasteful number, since it uses less digits than its factorization.

138980963464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19463 (or 19459 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 61.

The spelling of 138980963464 in words is "one hundred thirty-eight billion, nine hundred eighty million, nine hundred sixty-three thousand, four hundred sixty-four".