26256700699979 has 4 divisors (see below), whose sum is σ = 26423940831984. Its totient is φ = 26089460567976.

The previous prime is 26256700699927. The next prime is 26256700699997. The reversal of 26256700699979 is 97999600765262.

It is a happy number.

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-26256700699979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26256700696979) 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, 83620065767 + ... + 83620066080.

It is an arithmetic number, because the mean of its divisors is an integer number (6605985207996).

Almost surely, 2^{26256700699979} is an apocalyptic number.

26256700699979 is a deficient number, since it is larger than the sum of its proper divisors (167240132005).

26256700699979 is a wasteful number, since it uses less digits than its factorization.

26256700699979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167240132004.

The product of its (nonzero) digits is 1388832480, while the sum is 77.

The spelling of 26256700699979 in words is "twenty-six trillion, two hundred fifty-six billion, seven hundred million, six hundred ninety-nine thousand, nine hundred seventy-nine".