8139935974 has 8 divisors (see below), whose sum is σ = 12210291648. Its totient is φ = 4069838760.

The previous prime is 8139935959. The next prime is 8139935981. The reversal of 8139935974 is 4795399318.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71304 + ... + 146164.

It is an arithmetic number, because the mean of its divisors is an integer number (1526286456).

Almost surely, 2^8139935974 is an apocalyptic number.

8139935974 is a deficient number, since it is larger than the sum of its proper divisors (4070355674).

8139935974 is a wasteful number, since it uses less digits than its factorization.

8139935974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129230.

The product of its digits is 7348320, while the sum is 58.

The square root of 8139935974 is about 90221.5937234540. The cubic root of 8139935974 is about 2011.5939909806.

The spelling of 8139935974 in words is "eight billion, one hundred thirty-nine million, nine hundred thirty-five thousand, nine hundred seventy-four".