8138927901 has 16 divisors (see below), whose sum is σ = 11697135296. Its totient is φ = 5004084096.

The previous prime is 8138927887. The next prime is 8138927903. The reversal of 8138927901 is 1097298318.

It is not a de Polignac number, because 8138927901 - 2⁵ = 8138927869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138927903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49120 + ... + 136713.

It is an arithmetic number, because the mean of its divisors is an integer number (731070956).

Almost surely, 2^8138927901 is an apocalyptic number.

It is an amenable number.

8138927901 is a deficient number, since it is larger than the sum of its proper divisors (3558207395).

8138927901 is a wasteful number, since it uses less digits than its factorization.

8138927901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186972.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 8138927901 is about 90216.0069001061. The cubic root of 8138927901 is about 2011.5109470307.

The spelling of 8138927901 in words is "eight billion, one hundred thirty-eight million, nine hundred twenty-seven thousand, nine hundred one".