8425925841664 has 72 divisors (see below), whose sum is σ = 16973462559312. Its totient is φ = 4174430208000.

The previous prime is 8425925841661. The next prime is 8425925841667. The reversal of 8425925841664 is 4661485295248.

It is an interprime number because it is at equal distance from previous prime (8425925841661) and next prime (8425925841667).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a junction number, because it is equal to n+sod(n) for n = 8425925841596 and 8425925841605.

It is not an unprimeable number, because it can be changed into a prime (8425925841661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12061692 + ... + 12741124.

It is an arithmetic number, because the mean of its divisors is an integer number (235742535546).

Almost surely, 2^{8425925841664} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8425925841664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8486731279656).

8425925841664 is an abundant number, since it is smaller than the sum of its proper divisors (8547536717648).

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

8425925841664 is a wasteful number, since it uses less digits than its factorization.

8425925841664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679893 (or 679879 counting only the distinct ones).

The product of its digits is 132710400, while the sum is 64.

The spelling of 8425925841664 in words is "eight trillion, four hundred twenty-five billion, nine hundred twenty-five million, eight hundred forty-one thousand, six hundred sixty-four".