25667977141 has 2 divisors, whose sum is σ = 25667977142. Its totient is φ = 25667977140.

The previous prime is 25667977121. The next prime is 25667977243. The reversal of 25667977141 is 14177976652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23180062500 + 2487914641 = 152250^2 + 49879^2 .

It is a cyclic number.

It is not a de Polignac number, because 25667977141 - 2¹⁵ = 25667944373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25667977121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12833988570 + 12833988571.

It is an arithmetic number, because the mean of its divisors is an integer number (12833988571).

Almost surely, 2^25667977141 is an apocalyptic number.

It is an amenable number.

25667977141 is a deficient number, since it is larger than the sum of its proper divisors (1).

25667977141 is an equidigital number, since it uses as much as digits as its factorization.

25667977141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 55.

The spelling of 25667977141 in words is "twenty-five billion, six hundred sixty-seven million, nine hundred seventy-seven thousand, one hundred forty-one".