8138927926 has 4 divisors (see below), whose sum is σ = 12208391892. Its totient is φ = 4069463962.

The previous prime is 8138927903. The next prime is 8138927941. The reversal of 8138927926 is 6297298318.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×8138927926² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2034731980 + ... + 2034731983.

It is an arithmetic number, because the mean of its divisors is an integer number (3052097973).

Almost surely, 2^8138927926 is an apocalyptic number.

8138927926 is a deficient number, since it is larger than the sum of its proper divisors (4069463966).

8138927926 is a wasteful number, since it uses less digits than its factorization.

8138927926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4069463965.

The product of its digits is 2612736, while the sum is 55.

The square root of 8138927926 is about 90216.0070386625. The cubic root of 8138927926 is about 2011.5109490903.

The spelling of 8138927926 in words is "eight billion, one hundred thirty-eight million, nine hundred twenty-seven thousand, nine hundred twenty-six".