8107909642 has 16 divisors (see below), whose sum is σ = 13916473920. Its totient is φ = 3470518368.

The previous prime is 8107909573. The next prime is 8107909657. The reversal of 8107909642 is 2469097018.

It is a junction number, because it is equal to n+sod(n) for n = 8107909592 and 8107909601.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346608 + ... + 369259.

It is an arithmetic number, because the mean of its divisors is an integer number (869779620).

Almost surely, 2^8107909642 is an apocalyptic number.

8107909642 is a deficient number, since it is larger than the sum of its proper divisors (5808564278).

8107909642 is a wasteful number, since it uses less digits than its factorization.

8107909642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716685.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 8107909642 is about 90043.9317333489. The cubic root of 8107909642 is about 2008.9523381971.

The spelling of 8107909642 in words is "eight billion, one hundred seven million, nine hundred nine thousand, six hundred forty-two".