425234625861 has 16 divisors (see below), whose sum is σ = 567436605120. Its totient is φ = 283261278720.

The previous prime is 425234625773. The next prime is 425234625889. The reversal of 425234625861 is 168526432524.

It is not a de Polignac number, because 425234625861 - 2⁷ = 425234625733 is a prime.

It is a super-2 number, since 2×425234625861² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 425234625861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425234625461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41836366 + ... + 41846528.

It is an arithmetic number, because the mean of its divisors is an integer number (35464787820).

Almost surely, 2^425234625861 is an apocalyptic number.

It is an amenable number.

425234625861 is a deficient number, since it is larger than the sum of its proper divisors (142201979259).

425234625861 is a wasteful number, since it uses less digits than its factorization.

425234625861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20036.

The product of its digits is 2764800, while the sum is 48.

The spelling of 425234625861 in words is "four hundred twenty-five billion, two hundred thirty-four million, six hundred twenty-five thousand, eight hundred sixty-one".