138520074070 has 32 divisors (see below), whose sum is σ = 285046126848. Its totient is φ = 47477505888.

The previous prime is 138520074029. The next prime is 138520074109. The reversal of 138520074070 is 70470025831.

138520074070 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91404 + ... + 534223.

It is an arithmetic number, because the mean of its divisors is an integer number (8907691464).

Almost surely, 2^138520074070 is an apocalyptic number.

138520074070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138520074070 is an abundant number, since it is smaller than the sum of its proper divisors (146526052778).

138520074070 is a wasteful number, since it uses less digits than its factorization.

138520074070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628804.

The product of its (nonzero) digits is 47040, while the sum is 37.

The spelling of 138520074070 in words is "one hundred thirty-eight billion, five hundred twenty million, seventy-four thousand, seventy".