26291833278 has 32 divisors (see below), whose sum is σ = 55905209856. Its totient is φ = 8224733088.

The previous prime is 26291833277. The next prime is 26291833297. The reversal of 26291833278 is 87233819262.

It is a self number, because there is not a number n which added to its sum of digits gives 26291833278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26291833277) 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, 1790050 + ... + 1804677.

It is an arithmetic number, because the mean of its divisors is an integer number (1747037808).

Almost surely, 2^26291833278 is an apocalyptic number.

26291833278 is an abundant number, since it is smaller than the sum of its proper divisors (29613376578).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26291833278 is a wasteful number, since it uses less digits than its factorization.

26291833278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3594808.

The product of its digits is 1741824, while the sum is 51.

The spelling of 26291833278 in words is "twenty-six billion, two hundred ninety-one million, eight hundred thirty-three thousand, two hundred seventy-eight".