138393852106 has 8 divisors (see below), whose sum is σ = 207618307200. Its totient is φ = 69187749708.

The previous prime is 138393852101. The next prime is 138393852137. The reversal of 138393852106 is 601258393831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 138393852106.

It is not an unprimeable number, because it can be changed into a prime (138393852101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4569306 + ... + 4599493.

It is an arithmetic number, because the mean of its divisors is an integer number (25952288400).

Almost surely, 2^138393852106 is an apocalyptic number.

138393852106 is a deficient number, since it is larger than the sum of its proper divisors (69224455094).

138393852106 is an equidigital number, since it uses as much as digits as its factorization.

138393852106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9176348.

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 138393852106 in words is "one hundred thirty-eight billion, three hundred ninety-three million, eight hundred fifty-two thousand, one hundred six".