138786715140346 has 64 divisors (see below), whose sum is σ = 268560631922688. Its totient is φ = 52281971805888.

The previous prime is 138786715140329. The next prime is 138786715140377. The reversal of 138786715140346 is 643041517687831.

It is a happy number.

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, 73405026 + ... + 75271981.

It is an arithmetic number, because the mean of its divisors is an integer number (4196259873792).

Almost surely, 2^{138786715140346} is an apocalyptic number.

138786715140346 is a deficient number, since it is larger than the sum of its proper divisors (129773916782342).

138786715140346 is a wasteful number, since it uses less digits than its factorization.

138786715140346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148677275.

The product of its (nonzero) digits is 81285120, while the sum is 64.

The spelling of 138786715140346 in words is "one hundred thirty-eight trillion, seven hundred eighty-six billion, seven hundred fifteen million, one hundred forty thousand, three hundred forty-six".