425578959813 has 16 divisors (see below), whose sum is σ = 666028334720. Its totient is φ = 236615328576.

The previous prime is 425578959809. The next prime is 425578959893. The reversal of 425578959813 is 318959875524.

It is not a de Polignac number, because 425578959813 - 2² = 425578959809 is a prime.

It is a super-2 number, since 2×425578959813² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425578959893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273859558 + ... + 273861111.

It is an arithmetic number, because the mean of its divisors is an integer number (41626770920).

Almost surely, 2^425578959813 is an apocalyptic number.

It is an amenable number.

425578959813 is a deficient number, since it is larger than the sum of its proper divisors (240449374907).

425578959813 is a wasteful number, since it uses less digits than its factorization.

425578959813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547720716.

The product of its digits is 108864000, while the sum is 66.

The spelling of 425578959813 in words is "four hundred twenty-five billion, five hundred seventy-eight million, nine hundred fifty-nine thousand, eight hundred thirteen".