802274778133 has 2 divisors, whose sum is σ = 802274778134. Its totient is φ = 802274778132.

The previous prime is 802274778131. The next prime is 802274778163. The reversal of 802274778133 is 331877472208.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 779226376644 + 23048401489 = 882738^2 + 151817^2 .

It is a cyclic number.

It is not a de Polignac number, because 802274778133 - 2¹ = 802274778131 is a prime.

Together with 802274778131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802274778131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401137389066 + 401137389067.

It is an arithmetic number, because the mean of its divisors is an integer number (401137389067).

Almost surely, 2^802274778133 is an apocalyptic number.

It is an amenable number.

802274778133 is a deficient number, since it is larger than the sum of its proper divisors (1).

802274778133 is an equidigital number, since it uses as much as digits as its factorization.

802274778133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3161088, while the sum is 52.

The spelling of 802274778133 in words is "eight hundred two billion, two hundred seventy-four million, seven hundred seventy-eight thousand, one hundred thirty-three".