25728626272 has 24 divisors (see below), whose sum is σ = 50707121472. Its totient is φ = 12850627200.

The previous prime is 25728626269. The next prime is 25728626281. The reversal of 25728626272 is 27262682752.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 397104 + ... + 457327.

It is an arithmetic number, because the mean of its divisors is an integer number (2112796728).

Almost surely, 2^25728626272 is an apocalyptic number.

It is an amenable number.

25728626272 is a deficient number, since it is larger than the sum of its proper divisors (24978495200).

25728626272 is an equidigital number, since it uses as much as digits as its factorization.

25728626272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855382 (or 855374 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 49.

The spelling of 25728626272 in words is "twenty-five billion, seven hundred twenty-eight million, six hundred twenty-six thousand, two hundred seventy-two".