802601819827 has 2 divisors, whose sum is σ = 802601819828. Its totient is φ = 802601819826.

The previous prime is 802601819797. The next prime is 802601819837. The reversal of 802601819827 is 728918106208.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-802601819827 is a prime.

It is a super-2 number, since 2×802601819827² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (802601819837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401300909913 + 401300909914.

It is an arithmetic number, because the mean of its divisors is an integer number (401300909914).

Almost surely, 2^802601819827 is an apocalyptic number.

802601819827 is a deficient number, since it is larger than the sum of its proper divisors (1).

802601819827 is an equidigital number, since it uses as much as digits as its factorization.

802601819827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 52.

The spelling of 802601819827 in words is "eight hundred two billion, six hundred one million, eight hundred nineteen thousand, eight hundred twenty-seven".