26004428251 has 2 divisors, whose sum is σ = 26004428252. Its totient is φ = 26004428250.

The previous prime is 26004428207. The next prime is 26004428269. The reversal of 26004428251 is 15282440062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26004428251 - 2⁷ = 26004428123 is a prime.

It is a super-2 number, since 2×26004428251² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (26004428851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13002214125 + 13002214126.

It is an arithmetic number, because the mean of its divisors is an integer number (13002214126).

Almost surely, 2^26004428251 is an apocalyptic number.

26004428251 is a deficient number, since it is larger than the sum of its proper divisors (1).

26004428251 is an equidigital number, since it uses as much as digits as its factorization.

26004428251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 34.

The spelling of 26004428251 in words is "twenty-six billion, four million, four hundred twenty-eight thousand, two hundred fifty-one".