26650378775 has 12 divisors (see below), whose sum is σ = 33194667072. Its totient is φ = 21224691840.

The previous prime is 26650378757. The next prime is 26650378817. The reversal of 26650378775 is 57787305662.

It is not a de Polignac number, because 26650378775 - 2¹⁴ = 26650362391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26650378775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2384594 + ... + 2395743.

It is an arithmetic number, because the mean of its divisors is an integer number (2766222256).

Almost surely, 2^26650378775 is an apocalyptic number.

26650378775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26650378775 is a deficient number, since it is larger than the sum of its proper divisors (6544288297).

26650378775 is a wasteful number, since it uses less digits than its factorization.

26650378775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780570 (or 4780565 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 56.

The spelling of 26650378775 in words is "twenty-six billion, six hundred fifty million, three hundred seventy-eight thousand, seven hundred seventy-five".