25214486680 has 128 divisors (see below), whose sum is σ = 59579815680. Its totient is φ = 9593671680.

The previous prime is 25214486677. The next prime is 25214486719. The reversal of 25214486680 is 8668441252.

It is a self number, because there is not a number n which added to its sum of digits gives 25214486680.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28750402 + ... + 28751278.

It is an arithmetic number, because the mean of its divisors is an integer number (465467310).

Almost surely, 2^25214486680 is an apocalyptic number.

25214486680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25214486680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29789907840).

25214486680 is an abundant number, since it is smaller than the sum of its proper divisors (34365329000).

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

25214486680 is a wasteful number, since it uses less digits than its factorization.

25214486680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 46.

The spelling of 25214486680 in words is "twenty-five billion, two hundred fourteen million, four hundred eighty-six thousand, six hundred eighty".