25770866264 has 32 divisors (see below), whose sum is σ = 56767994640. Its totient is φ = 10812950400.

The previous prime is 25770866249. The next prime is 25770866267. The reversal of 25770866264 is 46266807752.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25770866267) 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, 11262347 + ... + 11264634.

Almost surely, 2^25770866264 is an apocalyptic number.

It is an amenable number.

25770866264 is an abundant number, since it is smaller than the sum of its proper divisors (30997128376).

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

25770866264 is a wasteful number, since it uses less digits than its factorization.

25770866264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22527011 (or 22527007 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 25770866264 in words is "twenty-five billion, seven hundred seventy million, eight hundred sixty-six thousand, two hundred sixty-four".