25046884857 has 16 divisors (see below), whose sum is σ = 33665331200. Its totient is φ = 16563690000.

The previous prime is 25046884853. The next prime is 25046884909. The reversal of 25046884857 is 75848864052.

It is not a de Polignac number, because 25046884857 - 2² = 25046884853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25046884797 and 25046884806.

It is not an unprimeable number, because it can be changed into a prime (25046884853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134232 + ... + 260982.

It is an arithmetic number, because the mean of its divisors is an integer number (2104083200).

Almost surely, 2^25046884857 is an apocalyptic number.

It is an amenable number.

25046884857 is a deficient number, since it is larger than the sum of its proper divisors (8618446343).

25046884857 is a wasteful number, since it uses less digits than its factorization.

25046884857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127284.

The product of its (nonzero) digits is 17203200, while the sum is 57.

The spelling of 25046884857 in words is "twenty-five billion, forty-six million, eight hundred eighty-four thousand, eight hundred fifty-seven".