13825778851 has 2 divisors, whose sum is σ = 13825778852. Its totient is φ = 13825778850.

The previous prime is 13825778839. The next prime is 13825778899. The reversal of 13825778851 is 15887752831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13825778851 - 2⁹ = 13825778339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13825778792 and 13825778801.

It is not a weakly prime, because it can be changed into another prime (13825778801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6912889425 + 6912889426.

It is an arithmetic number, because the mean of its divisors is an integer number (6912889426).

Almost surely, 2^13825778851 is an apocalyptic number.

13825778851 is a deficient number, since it is larger than the sum of its proper divisors (1).

13825778851 is an equidigital number, since it uses as much as digits as its factorization.

13825778851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3763200, while the sum is 55.

The spelling of 13825778851 in words is "thirteen billion, eight hundred twenty-five million, seven hundred seventy-eight thousand, eight hundred fifty-one".