26425787251 has 2 divisors, whose sum is σ = 26425787252. Its totient is φ = 26425787250.

The previous prime is 26425787243. The next prime is 26425787291. The reversal of 26425787251 is 15278752462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26425787251 - 2³ = 26425787243 is a prime.

It is a super-2 number, since 2×26425787251² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26425787195 and 26425787204.

It is not a weakly prime, because it can be changed into another prime (26425787221) 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 as a sum of consecutive naturals, namely, 13212893625 + 13212893626.

It is an arithmetic number, because the mean of its divisors is an integer number (13212893626).

Almost surely, 2^26425787251 is an apocalyptic number.

26425787251 is a deficient number, since it is larger than the sum of its proper divisors (1).

26425787251 is an equidigital number, since it uses as much as digits as its factorization.

26425787251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1881600, while the sum is 49.

The spelling of 26425787251 in words is "twenty-six billion, four hundred twenty-five million, seven hundred eighty-seven thousand, two hundred fifty-one".