26406026519 has 2 divisors, whose sum is σ = 26406026520. Its totient is φ = 26406026518.

The previous prime is 26406026459. The next prime is 26406026561. The reversal of 26406026519 is 91562060462.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26406026519 - 2²⁴ = 26389249303 is a prime.

It is a super-2 number, since 2×26406026519² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26406026719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13203013259 + 13203013260.

It is an arithmetic number, because the mean of its divisors is an integer number (13203013260).

Almost surely, 2^26406026519 is an apocalyptic number.

26406026519 is a deficient number, since it is larger than the sum of its proper divisors (1).

26406026519 is an equidigital number, since it uses as much as digits as its factorization.

26406026519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 26406026519 in words is "twenty-six billion, four hundred six million, twenty-six thousand, five hundred nineteen".