26696446457 has 4 divisors (see below), whose sum is σ = 26814052176. Its totient is φ = 26578840740.

The previous prime is 26696446411. The next prime is 26696446477. The reversal of 26696446457 is 75464469662.

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 a de Polignac number, because none of the positive numbers 2^k-26696446457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26696446396 and 26696446405.

It is not an unprimeable number, because it can be changed into a prime (26696446477) 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, 58802519 + ... + 58802972.

It is an arithmetic number, because the mean of its divisors is an integer number (6703513044).

Almost surely, 2^26696446457 is an apocalyptic number.

It is an amenable number.

26696446457 is a deficient number, since it is larger than the sum of its proper divisors (117605719).

26696446457 is a wasteful number, since it uses less digits than its factorization.

26696446457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117605718.

The product of its digits is 52254720, while the sum is 59.

The spelling of 26696446457 in words is "twenty-six billion, six hundred ninety-six million, four hundred forty-six thousand, four hundred fifty-seven".