25829752668 has 48 divisors (see below), whose sum is σ = 62435251200. Its totient is φ = 8302492800.

The previous prime is 25829752667. The next prime is 25829752693. The reversal of 25829752668 is 86625792852.

It is a happy number.

It is a super-2 number, since 2×25829752668² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25829752661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19018 + ... + 228081.

It is an arithmetic number, because the mean of its divisors is an integer number (1300734400).

Almost surely, 2^25829752668 is an apocalyptic number.

It is an amenable number.

25829752668 is an abundant number, since it is smaller than the sum of its proper divisors (36605498532).

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

25829752668 is a wasteful number, since it uses less digits than its factorization.

25829752668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247418 (or 247416 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 60.

The spelling of 25829752668 in words is "twenty-five billion, eight hundred twenty-nine million, seven hundred fifty-two thousand, six hundred sixty-eight".