804960553381 has 2 divisors, whose sum is σ = 804960553382. Its totient is φ = 804960553380.

The previous prime is 804960553373. The next prime is 804960553387. The reversal of 804960553381 is 183355069408.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 687887772100 + 117072781281 = 829390^2 + 342159^2 .

It is a cyclic number.

It is not a de Polignac number, because 804960553381 - 2³ = 804960553373 is a prime.

It is a super-2 number, since 2×804960553381² (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 (804960553387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402480276690 + 402480276691.

It is an arithmetic number, because the mean of its divisors is an integer number (402480276691).

Almost surely, 2^804960553381 is an apocalyptic number.

It is an amenable number.

804960553381 is a deficient number, since it is larger than the sum of its proper divisors (1).

804960553381 is an equidigital number, since it uses as much as digits as its factorization.

804960553381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3110400, while the sum is 52.

The spelling of 804960553381 in words is "eight hundred four billion, nine hundred sixty million, five hundred fifty-three thousand, three hundred eighty-one".