26040972847 has 2 divisors, whose sum is σ = 26040972848. Its totient is φ = 26040972846.

The previous prime is 26040972821. The next prime is 26040972851. The reversal of 26040972847 is 74827904062.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26040972847 - 2¹¹ = 26040970799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26040972847.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26040972877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13020486423 + 13020486424.

It is an arithmetic number, because the mean of its divisors is an integer number (13020486424).

Almost surely, 2^26040972847 is an apocalyptic number.

26040972847 is a deficient number, since it is larger than the sum of its proper divisors (1).

26040972847 is an equidigital number, since it uses as much as digits as its factorization.

26040972847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 26040972847 in words is "twenty-six billion, forty million, nine hundred seventy-two thousand, eight hundred forty-seven".