138630507070 has 48 divisors (see below), whose sum is σ = 290416465584. Its totient is φ = 47445728000.

The previous prime is 138630507047. The next prime is 138630507089. The reversal of 138630507070 is 70705036831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3349156 + ... + 3390295.

It is an arithmetic number, because the mean of its divisors is an integer number (6050343033).

Almost surely, 2^138630507070 is an apocalyptic number.

138630507070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138630507070 is an abundant number, since it is smaller than the sum of its proper divisors (151785958514).

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

138630507070 is a wasteful number, since it uses less digits than its factorization.

138630507070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6739497 (or 6739486 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The spelling of 138630507070 in words is "one hundred thirty-eight billion, six hundred thirty million, five hundred seven thousand, seventy".