25886081451 has 32 divisors (see below), whose sum is σ = 36313612288. Its totient is φ = 16385120640.

The previous prime is 25886081449. The next prime is 25886081461. The reversal of 25886081451 is 15418068852.

It is not a de Polignac number, because 25886081451 - 2¹ = 25886081449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25886081451.

It is not an unprimeable number, because it can be changed into a prime (25886081411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 844866 + ... + 874968.

It is an arithmetic number, because the mean of its divisors is an integer number (1134800384).

Almost surely, 2^25886081451 is an apocalyptic number.

25886081451 is a deficient number, since it is larger than the sum of its proper divisors (10427530837).

25886081451 is a wasteful number, since it uses less digits than its factorization.

25886081451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30331.

The product of its (nonzero) digits is 614400, while the sum is 48.

The spelling of 25886081451 in words is "twenty-five billion, eight hundred eighty-six million, eighty-one thousand, four hundred fifty-one".