7713987807 has 4 divisors (see below), whose sum is σ = 10285317080. Its totient is φ = 5142658536.

The previous prime is 7713987797. The next prime is 7713987823. The reversal of 7713987807 is 7087893177.

7713987807 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7087893177 = 3 ⋅2362631059.

It is not a de Polignac number, because 7713987807 - 2¹⁰ = 7713986783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7713987887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285664632 + ... + 1285664637.

It is an arithmetic number, because the mean of its divisors is an integer number (2571329270).

Almost surely, 2^7713987807 is an apocalyptic number.

7713987807 is a deficient number, since it is larger than the sum of its proper divisors (2571329273).

7713987807 is a wasteful number, since it uses less digits than its factorization.

7713987807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571329272.

The product of its (nonzero) digits is 4148928, while the sum is 57.

The square root of 7713987807 is about 87829.3106371671. The cubic root of 7713987807 is about 1975.8758328354.

The spelling of 7713987807 in words is "seven billion, seven hundred thirteen million, nine hundred eighty-seven thousand, eight hundred seven".