426512121215625 has 36 divisors (see below), whose sum is σ = 770042044178316. Its totient is φ = 227473131300000.

The previous prime is 426512121215591. The next prime is 426512121215639. The reversal of 426512121215625 is 526512121215624.

426512121215625 is a `hidden beast` number, since 4 + 2 + 6 + 5 + 1 + 2 + 1 + 2 + 1 + 2 + 15 + 625 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 351565650007056 + 74946471208569 = 18750084^2 + 8657163^2 .

It is not a de Polignac number, because 426512121215625 - 2¹⁵ = 426512121182857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7582409586 + ... + 7582465835.

It is an arithmetic number, because the mean of its divisors is an integer number (21390056782731).

Almost surely, 2^{426512121215625} is an apocalyptic number.

426512121215625 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

426512121215625 is a deficient number, since it is larger than the sum of its proper divisors (343529922962691).

426512121215625 is an equidigital number, since it uses as much as digits as its factorization.

426512121215625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15164875452 (or 15164875429 counting only the distinct ones).

The product of its digits is 576000, while the sum is 45.

Subtracting 426512121215625 from its reverse (526512121215624), we obtain a palindrome (99999999999999).

The spelling of 426512121215625 in words is "four hundred twenty-six trillion, five hundred twelve billion, one hundred twenty-one million, two hundred fifteen thousand, six hundred twenty-five".