8625809420244 has 84 divisors (see below), whose sum is σ = 23963713962804. Its totient is φ = 2706136273152.

The previous prime is 8625809420233. The next prime is 8625809420317. The reversal of 8625809420244 is 4420249085268.

8625809420244 is a `hidden beast` number, since 8 + 625 + 8 + 0 + 9 + 4 + 2 + 0 + 2 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4098438291600 + 4527371128644 = 2024460^2 + 2127762^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 86953267 + ... + 87052410.

It is an arithmetic number, because the mean of its divisors is an integer number (285282309081).

Almost surely, 2^{8625809420244} is an apocalyptic number.

It is an amenable number.

8625809420244 is an abundant number, since it is smaller than the sum of its proper divisors (15337904542560).

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

8625809420244 is a wasteful number, since it uses less digits than its factorization.

8625809420244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174005716 (or 174005699 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 54.

The spelling of 8625809420244 in words is "eight trillion, six hundred twenty-five billion, eight hundred nine million, four hundred twenty thousand, two hundred forty-four".