25880266680 has 64 divisors (see below), whose sum is σ = 77651408160. Its totient is φ = 6900461568.

The previous prime is 25880266661. The next prime is 25880266733. The reversal of 25880266680 is 8666208852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1618404 + ... + 1634316.

Almost surely, 2^25880266680 is an apocalyptic number.

25880266680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25880266680 is an abundant number, since it is smaller than the sum of its proper divisors (51771141480).

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

25880266680 is a wasteful number, since it uses less digits than its factorization.

25880266680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29480 (or 29476 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 25880266680 in words is "twenty-five billion, eight hundred eighty million, two hundred sixty-six thousand, six hundred eighty".