26690741297 has 4 divisors (see below), whose sum is σ = 29117172336. Its totient is φ = 24264310260.

The previous prime is 26690741267. The next prime is 26690741303. The reversal of 26690741297 is 79214709662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26690741297 - 2¹⁰ = 26690740273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26690741267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213215503 + ... + 1213215524.

It is an arithmetic number, because the mean of its divisors is an integer number (7279293084).

Almost surely, 2^26690741297 is an apocalyptic number.

It is an amenable number.

26690741297 is a deficient number, since it is larger than the sum of its proper divisors (2426431039).

26690741297 is a wasteful number, since it uses less digits than its factorization.

26690741297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426431038.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The spelling of 26690741297 in words is "twenty-six billion, six hundred ninety million, seven hundred forty-one thousand, two hundred ninety-seven".