803445478061 has 2 divisors, whose sum is σ = 803445478062. Its totient is φ = 803445478060.

The previous prime is 803445478039. The next prime is 803445478063. The reversal of 803445478061 is 160874544308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595628932900 + 207816545161 = 771770^2 + 455869^2 .

It is a cyclic number.

It is not a de Polignac number, because 803445478061 - 2¹⁸ = 803445215917 is a prime.

Together with 803445478063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (803445478063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401722739030 + 401722739031.

It is an arithmetic number, because the mean of its divisors is an integer number (401722739031).

Almost surely, 2^803445478061 is an apocalyptic number.

It is an amenable number.

803445478061 is a deficient number, since it is larger than the sum of its proper divisors (1).

803445478061 is an equidigital number, since it uses as much as digits as its factorization.

803445478061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2580480, while the sum is 50.

The spelling of 803445478061 in words is "eight hundred three billion, four hundred forty-five million, four hundred seventy-eight thousand, sixty-one".