26836450979 has 4 divisors (see below), whose sum is σ = 28900793376. Its totient is φ = 24772108584.

The previous prime is 26836450967. The next prime is 26836450987. The reversal of 26836450979 is 97905463862.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26836450979 is a prime.

It is a super-2 number, since 2×26836450979² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26836450909) 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, 1032171179 + ... + 1032171204.

It is an arithmetic number, because the mean of its divisors is an integer number (7225198344).

Almost surely, 2^26836450979 is an apocalyptic number.

26836450979 is a deficient number, since it is larger than the sum of its proper divisors (2064342397).

26836450979 is a wasteful number, since it uses less digits than its factorization.

26836450979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2064342396.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 26836450979 in words is "twenty-six billion, eight hundred thirty-six million, four hundred fifty thousand, nine hundred seventy-nine".