425798251689 has 16 divisors (see below), whose sum is σ = 581046109952. Its totient is φ = 277210494288.

The previous prime is 425798251687. The next prime is 425798251717. The reversal of 425798251689 is 986152897524.

It is not a de Polignac number, because 425798251689 - 2¹ = 425798251687 is a prime.

It is a super-2 number, since 2×425798251689² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425798251687) 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, 358542 + ... + 990024.

It is an arithmetic number, because the mean of its divisors is an integer number (36315381872).

Almost surely, 2^425798251689 is an apocalyptic number.

It is an amenable number.

425798251689 is a deficient number, since it is larger than the sum of its proper divisors (155247858263).

425798251689 is a wasteful number, since it uses less digits than its factorization.

425798251689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636756.

The product of its digits is 87091200, while the sum is 66.

The spelling of 425798251689 in words is "four hundred twenty-five billion, seven hundred ninety-eight million, two hundred fifty-one thousand, six hundred eighty-nine".