26812780955 has 16 divisors (see below), whose sum is σ = 33603600384. Its totient is φ = 20499679200.

The previous prime is 26812780949. The next prime is 26812780957. The reversal of 26812780955 is 55908721862.

It is a de Polignac number, because none of the positive numbers 2^k-26812780955 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26812780897 and 26812780906.

It is not an unprimeable number, because it can be changed into a prime (26812780957) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31082 + ... + 233648.

It is an arithmetic number, because the mean of its divisors is an integer number (2100225024).

Almost surely, 2^26812780955 is an apocalyptic number.

26812780955 is a deficient number, since it is larger than the sum of its proper divisors (6790819429).

26812780955 is a wasteful number, since it uses less digits than its factorization.

26812780955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203746.

The product of its (nonzero) digits is 2419200, while the sum is 53.

The spelling of 26812780955 in words is "twenty-six billion, eight hundred twelve million, seven hundred eighty thousand, nine hundred fifty-five".