803854291957 has 2 divisors, whose sum is σ = 803854291958. Its totient is φ = 803854291956.

The previous prime is 803854291943. The next prime is 803854291969. The reversal of 803854291957 is 759192458308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636741757521 + 167112534436 = 797961^2 + 408794^2 .

It is a cyclic number.

It is not a de Polignac number, because 803854291957 - 2⁷ = 803854291829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 803854291895 and 803854291904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (803854292957) 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, 401927145978 + 401927145979.

It is an arithmetic number, because the mean of its divisors is an integer number (401927145979).

Almost surely, 2^803854291957 is an apocalyptic number.

It is an amenable number.

803854291957 is a deficient number, since it is larger than the sum of its proper divisors (1).

803854291957 is an equidigital number, since it uses as much as digits as its factorization.

803854291957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 803854291957 in words is "eight hundred three billion, eight hundred fifty-four million, two hundred ninety-one thousand, nine hundred fifty-seven".