8130707686 has 4 divisors (see below), whose sum is σ = 12196061532. Its totient is φ = 4065353842.

The previous prime is 8130707671. The next prime is 8130707693. The reversal of 8130707686 is 6867070318.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6867070318 = 2 ⋅3433535159.

It is a super-2 number, since 2×8130707686² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2032676920 + ... + 2032676923.

It is an arithmetic number, because the mean of its divisors is an integer number (3049015383).

Almost surely, 2^8130707686 is an apocalyptic number.

8130707686 is a deficient number, since it is larger than the sum of its proper divisors (4065353846).

8130707686 is a wasteful number, since it uses less digits than its factorization.

8130707686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065353845.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 8130707686 is about 90170.4368737337. The cubic root of 8130707686 is about 2010.8335186471.

The spelling of 8130707686 in words is "eight billion, one hundred thirty million, seven hundred seven thousand, six hundred eighty-six".