26404453699 has 12 divisors (see below), whose sum is σ = 28598607552. Its totient is φ = 24367543200.

The previous prime is 26404453693. The next prime is 26404453739. The reversal of 26404453699 is 99635440462.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-26404453699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26404453693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 800269 + ... + 832609.

It is an arithmetic number, because the mean of its divisors is an integer number (2383217296).

Almost surely, 2^26404453699 is an apocalyptic number.

26404453699 is a deficient number, since it is larger than the sum of its proper divisors (2194153853).

26404453699 is a wasteful number, since it uses less digits than its factorization.

26404453699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37198 (or 37185 counting only the distinct ones).

The product of its (nonzero) digits is 5598720, while the sum is 52.

The spelling of 26404453699 in words is "twenty-six billion, four hundred four million, four hundred fifty-three thousand, six hundred ninety-nine".