87713878107 has 4 divisors (see below), whose sum is σ = 116951837480. Its totient is φ = 58475918736.

The previous prime is 87713878103. The next prime is 87713878129. The reversal of 87713878107 is 70187831778.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 87713878107 - 2² = 87713878103 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87713878103) by changing a digit.

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, 14618979682 + ... + 14618979687.

It is an arithmetic number, because the mean of its divisors is an integer number (29237959370).

Almost surely, 2^87713878107 is an apocalyptic number.

87713878107 is a deficient number, since it is larger than the sum of its proper divisors (29237959373).

87713878107 is a wasteful number, since it uses less digits than its factorization.

87713878107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29237959372.

The product of its (nonzero) digits is 3687936, while the sum is 57.

The spelling of 87713878107 in words is "eighty-seven billion, seven hundred thirteen million, eight hundred seventy-eight thousand, one hundred seven".