802601819797 has 2 divisors, whose sum is σ = 802601819798. Its totient is φ = 802601819796.

The previous prime is 802601819777. The next prime is 802601819827. The reversal of 802601819797 is 797918106208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691543591281 + 111058228516 = 831591^2 + 333254^2 .

It is a cyclic number.

It is not a de Polignac number, because 802601819797 - 2¹¹ = 802601817749 is a prime.

It is a super-2 number, since 2×802601819797² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802601819777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401300909898 + 401300909899.

It is an arithmetic number, because the mean of its divisors is an integer number (401300909899).

Almost surely, 2^802601819797 is an apocalyptic number.

It is an amenable number.

802601819797 is a deficient number, since it is larger than the sum of its proper divisors (1).

802601819797 is an equidigital number, since it uses as much as digits as its factorization.

802601819797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 58.

The spelling of 802601819797 in words is "eight hundred two billion, six hundred one million, eight hundred nineteen thousand, seven hundred ninety-seven".