26464650571 has 2 divisors, whose sum is σ = 26464650572. Its totient is φ = 26464650570.

The previous prime is 26464650473. The next prime is 26464650587. The reversal of 26464650571 is 17505646462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26464650571 - 2²¹ = 26462553419 is a prime.

It is not a weakly prime, because it can be changed into another prime (26464650071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13232325285 + 13232325286.

It is an arithmetic number, because the mean of its divisors is an integer number (13232325286).

Almost surely, 2^26464650571 is an apocalyptic number.

26464650571 is a deficient number, since it is larger than the sum of its proper divisors (1).

26464650571 is an equidigital number, since it uses as much as digits as its factorization.

26464650571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1209600, while the sum is 46.

The spelling of 26464650571 in words is "twenty-six billion, four hundred sixty-four million, six hundred fifty thousand, five hundred seventy-one".