138630127270 has 16 divisors (see below), whose sum is σ = 251823535920. Its totient is φ = 54943316064.

The previous prime is 138630127249. The next prime is 138630127283. The reversal of 138630127270 is 72721036831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63590712 + ... + 63592891.

It is an arithmetic number, because the mean of its divisors is an integer number (15738970995).

Almost surely, 2^138630127270 is an apocalyptic number.

138630127270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138630127270 is a deficient number, since it is larger than the sum of its proper divisors (113193408650).

138630127270 is a wasteful number, since it uses less digits than its factorization.

138630127270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127183719.

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 138630127270 in words is "one hundred thirty-eight billion, six hundred thirty million, one hundred twenty-seven thousand, two hundred seventy".