802451984669 has 2 divisors, whose sum is σ = 802451984670. Its totient is φ = 802451984668.

The previous prime is 802451984597. The next prime is 802451984687. The reversal of 802451984669 is 966489154208.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 790786904644 + 11665080025 = 889262^2 + 108005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-802451984669 is a prime.

It is a super-2 number, since 2×802451984669² (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 (802451984569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401225992334 + 401225992335.

It is an arithmetic number, because the mean of its divisors is an integer number (401225992335).

Almost surely, 2^802451984669 is an apocalyptic number.

It is an amenable number.

802451984669 is a deficient number, since it is larger than the sum of its proper divisors (1).

802451984669 is an equidigital number, since it uses as much as digits as its factorization.

802451984669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29859840, while the sum is 62.

The spelling of 802451984669 in words is "eight hundred two billion, four hundred fifty-one million, nine hundred eighty-four thousand, six hundred sixty-nine".