825899414634 has 24 divisors (see below), whose sum is σ = 2045084265120. Its totient is φ = 235971261288.

The previous prime is 825899414581. The next prime is 825899414671. The reversal of 825899414634 is 436414998528.

825899414634 is a `hidden beast` number, since 8 + 2 + 5 + 89 + 94 + 1 + 463 + 4 = 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 11 ways as a sum of consecutive naturals, for example, 3277378504 + ... + 3277378755.

It is an arithmetic number, because the mean of its divisors is an integer number (85211844380).

Almost surely, 2^825899414634 is an apocalyptic number.

825899414634 is an abundant number, since it is smaller than the sum of its proper divisors (1219184850486).

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

825899414634 is a wasteful number, since it uses less digits than its factorization.

825899414634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6554757274 (or 6554757271 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 63.

The spelling of 825899414634 in words is "eight hundred twenty-five billion, eight hundred ninety-nine million, four hundred fourteen thousand, six hundred thirty-four".