856504130107 has 4 divisors (see below), whose sum is σ = 856711670976. Its totient is φ = 856296589240.

The previous prime is 856504130059. The next prime is 856504130171. The reversal of 856504130107 is 701031405658.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 856504130107 - 2⁷ = 856504129979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 856504130107.

It is not an unprimeable number, because it can be changed into a prime (856504130197) 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, 103764244 + ... + 103772497.

It is an arithmetic number, because the mean of its divisors is an integer number (214177917744).

Almost surely, 2^856504130107 is an apocalyptic number.

856504130107 is a deficient number, since it is larger than the sum of its proper divisors (207540869).

856504130107 is a wasteful number, since it uses less digits than its factorization.

856504130107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207540868.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 856504130107 in words is "eight hundred fifty-six billion, five hundred four million, one hundred thirty thousand, one hundred seven".