26699404959 has 12 divisors (see below), whose sum is σ = 39506437152. Its totient is φ = 17365466400.

The previous prime is 26699404931. The next prime is 26699404969. The reversal of 26699404959 is 95940499662.

It is not a de Polignac number, because 26699404959 - 2¹² = 26699400863 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26699404896 and 26699404905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26699404969) 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, 36177687 + ... + 36178424.

It is an arithmetic number, because the mean of its divisors is an integer number (3292203096).

Almost surely, 2^26699404959 is an apocalyptic number.

26699404959 is a deficient number, since it is larger than the sum of its proper divisors (12807032193).

26699404959 is a wasteful number, since it uses less digits than its factorization.

26699404959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72356158 (or 72356155 counting only the distinct ones).

The product of its (nonzero) digits is 37791360, while the sum is 63.

The spelling of 26699404959 in words is "twenty-six billion, six hundred ninety-nine million, four hundred four thousand, nine hundred fifty-nine".