26706706499 has 4 divisors (see below), whose sum is σ = 29134588920. Its totient is φ = 24278824080.

The previous prime is 26706706493. The next prime is 26706706501. The reversal of 26706706499 is 99460760762.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26706706499 - 2¹² = 26706702403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26706706493) 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, 1213941194 + ... + 1213941215.

It is an arithmetic number, because the mean of its divisors is an integer number (7283647230).

Almost surely, 2^26706706499 is an apocalyptic number.

26706706499 is a deficient number, since it is larger than the sum of its proper divisors (2427882421).

26706706499 is a wasteful number, since it uses less digits than its factorization.

26706706499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427882420.

The product of its (nonzero) digits is 6858432, while the sum is 56.

The spelling of 26706706499 in words is "twenty-six billion, seven hundred six million, seven hundred six thousand, four hundred ninety-nine".