8107949992 has 8 divisors (see below), whose sum is σ = 15202406250. Its totient is φ = 4053974992.

The previous prime is 8107949987. The next prime is 8107950023. The reversal of 8107949992 is 2999497018.

It can be written as a sum of positive squares in only one way, i.e., 8014904676 + 93045316 = 89526^2 + 9646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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, 506746867 + ... + 506746882.

Almost surely, 2^8107949992 is an apocalyptic number.

It is an amenable number.

8107949992 is a deficient number, since it is larger than the sum of its proper divisors (7094456258).

8107949992 is a wasteful number, since it uses less digits than its factorization.

8107949992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013493755 (or 1013493751 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 58.

The square root of 8107949992 is about 90044.1557903677. The cubic root of 8107949992 is about 2008.9556707903.

The spelling of 8107949992 in words is "eight billion, one hundred seven million, nine hundred forty-nine thousand, nine hundred ninety-two".