810401597479 has 2 divisors, whose sum is σ = 810401597480. Its totient is φ = 810401597478.

The previous prime is 810401597441. The next prime is 810401597539. The reversal of 810401597479 is 974795104018.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 810401597479 - 2¹³ = 810401589287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (810401597779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 405200798739 + 405200798740.

It is an arithmetic number, because the mean of its divisors is an integer number (405200798740).

Almost surely, 2^810401597479 is an apocalyptic number.

810401597479 is a deficient number, since it is larger than the sum of its proper divisors (1).

810401597479 is an equidigital number, since it uses as much as digits as its factorization.

810401597479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2540160, while the sum is 55.

The spelling of 810401597479 in words is "eight hundred ten billion, four hundred one million, five hundred ninety-seven thousand, four hundred seventy-nine".