8257525863426 has 320 divisors, whose sum is σ = 22212509958144. Its totient is φ = 2243190153600.

The previous prime is 8257525863413. The next prime is 8257525863487. The reversal of 8257525863426 is 6243685257528.

8257525863426 is a `hidden beast` number, since 8 + 2 + 5 + 7 + 5 + 2 + 586 + 3 + 42 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 935056831 + ... + 935065661.

Almost surely, 2^{8257525863426} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8257525863426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11106254979072).

8257525863426 is an abundant number, since it is smaller than the sum of its proper divisors (13954984094718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8257525863426 is a wasteful number, since it uses less digits than its factorization.

8257525863426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9347 (or 9338 counting only the distinct ones).

The product of its digits is 193536000, while the sum is 63.

The spelling of 8257525863426 in words is "eight trillion, two hundred fifty-seven billion, five hundred twenty-five million, eight hundred sixty-three thousand, four hundred twenty-six".