26884613947 has 2 divisors, whose sum is σ = 26884613948. Its totient is φ = 26884613946.

The previous prime is 26884613927. The next prime is 26884613981. The reversal of 26884613947 is 74931648862.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26884613947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26884613891 and 26884613900.

It is not a weakly prime, because it can be changed into another prime (26884613927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13442306973 + 13442306974.

It is an arithmetic number, because the mean of its divisors is an integer number (13442306974).

Almost surely, 2^26884613947 is an apocalyptic number.

26884613947 is a deficient number, since it is larger than the sum of its proper divisors (1).

26884613947 is an equidigital number, since it uses as much as digits as its factorization.

26884613947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13934592, while the sum is 58.

The spelling of 26884613947 in words is "twenty-six billion, eight hundred eighty-four million, six hundred thirteen thousand, nine hundred forty-seven".