25728626276 has 6 divisors (see below), whose sum is σ = 45025095990. Its totient is φ = 12864313136.

The previous prime is 25728626269. The next prime is 25728626281. The reversal of 25728626276 is 67262682752.

It can be written as a sum of positive squares in only one way, i.e., 14016192100 + 11712434176 = 118390^2 + 108224^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3216078281 + ... + 3216078288.

It is an arithmetic number, because the mean of its divisors is an integer number (7504182665).

Almost surely, 2^25728626276 is an apocalyptic number.

It is an amenable number.

25728626276 is a deficient number, since it is larger than the sum of its proper divisors (19296469714).

25728626276 is a wasteful number, since it uses less digits than its factorization.

25728626276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6432156573 (or 6432156571 counting only the distinct ones).

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

The spelling of 25728626276 in words is "twenty-five billion, seven hundred twenty-eight million, six hundred twenty-six thousand, two hundred seventy-six".