138572183771 has 8 divisors (see below), whose sum is σ = 158392742880. Its totient is φ = 118757757888.

The previous prime is 138572183767. The next prime is 138572183791. The reversal of 138572183771 is 177381275831.

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

It is not a de Polignac number, because 138572183771 - 2² = 138572183767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138572183741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1484786 + ... + 1575351.

It is an arithmetic number, because the mean of its divisors is an integer number (19799092860).

Almost surely, 2^138572183771 is an apocalyptic number.

138572183771 is a deficient number, since it is larger than the sum of its proper divisors (19820559109).

138572183771 is an equidigital number, since it uses as much as digits as its factorization.

138572183771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3066613.

The product of its digits is 1975680, while the sum is 53.

The spelling of 138572183771 in words is "one hundred thirty-eight billion, five hundred seventy-two million, one hundred eighty-three thousand, seven hundred seventy-one".