26447464564351 has 2 divisors, whose sum is σ = 26447464564352. Its totient is φ = 26447464564350.

The previous prime is 26447464564343. The next prime is 26447464564361. The reversal of 26447464564351 is 15346546474462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26447464564351 - 2³ = 26447464564343 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26447464564351.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26447464564321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13223732282175 + 13223732282176.

It is an arithmetic number, because the mean of its divisors is an integer number (13223732282176).

Almost surely, 2^{26447464564351} is an apocalyptic number.

26447464564351 is a deficient number, since it is larger than the sum of its proper divisors (1).

26447464564351 is an equidigital number, since it uses as much as digits as its factorization.

26447464564351 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 232243200, while the sum is 61.

The spelling of 26447464564351 in words is "twenty-six trillion, four hundred forty-seven billion, four hundred sixty-four million, five hundred sixty-four thousand, three hundred fifty-one".