425856712879 has 8 divisors (see below), whose sum is σ = 463067495072. Its totient is φ = 389282012640.

The previous prime is 425856712867. The next prime is 425856712903. The reversal of 425856712879 is 978217658524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425856712879 - 2⁷ = 425856712751 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 425856712879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425856712829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159019092 + ... + 159021769.

It is an arithmetic number, because the mean of its divisors is an integer number (57883436884).

Almost surely, 2^425856712879 is an apocalyptic number.

425856712879 is a deficient number, since it is larger than the sum of its proper divisors (37210782193).

425856712879 is a wasteful number, since it uses less digits than its factorization.

425856712879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318040977.

The product of its digits is 67737600, while the sum is 64.

The spelling of 425856712879 in words is "four hundred twenty-five billion, eight hundred fifty-six million, seven hundred twelve thousand, eight hundred seventy-nine".