25814981411 has 2 divisors, whose sum is σ = 25814981412. Its totient is φ = 25814981410.

The previous prime is 25814981383. The next prime is 25814981453. The reversal of 25814981411 is 11418941852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25814981411 - 2⁶ = 25814981347 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25814981111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12907490705 + 12907490706.

It is an arithmetic number, because the mean of its divisors is an integer number (12907490706).

Almost surely, 2^25814981411 is an apocalyptic number.

25814981411 is a deficient number, since it is larger than the sum of its proper divisors (1).

25814981411 is an equidigital number, since it uses as much as digits as its factorization.

25814981411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 44.

The spelling of 25814981411 in words is "twenty-five billion, eight hundred fourteen million, nine hundred eighty-one thousand, four hundred eleven".