26454650687 has 2 divisors, whose sum is σ = 26454650688. Its totient is φ = 26454650686.

The previous prime is 26454650641. The next prime is 26454650693. The reversal of 26454650687 is 78605645462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26454650687 - 2³² = 22159683391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26454650587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13227325343 + 13227325344.

It is an arithmetic number, because the mean of its divisors is an integer number (13227325344).

Almost surely, 2^26454650687 is an apocalyptic number.

26454650687 is a deficient number, since it is larger than the sum of its proper divisors (1).

26454650687 is an equidigital number, since it uses as much as digits as its factorization.

26454650687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9676800, while the sum is 53.

The spelling of 26454650687 in words is "twenty-six billion, four hundred fifty-four million, six hundred fifty thousand, six hundred eighty-seven".