853847862503 has 2 divisors, whose sum is σ = 853847862504. Its totient is φ = 853847862502.

The previous prime is 853847862407. The next prime is 853847862529. The reversal of 853847862503 is 305268748358.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853847862503 - 2¹⁰ = 853847861479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853847862103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426923931251 + 426923931252.

It is an arithmetic number, because the mean of its divisors is an integer number (426923931252).

Almost surely, 2^853847862503 is an apocalyptic number.

853847862503 is a deficient number, since it is larger than the sum of its proper divisors (1).

853847862503 is an equidigital number, since it uses as much as digits as its factorization.

853847862503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38707200, while the sum is 59.

The spelling of 853847862503 in words is "eight hundred fifty-three billion, eight hundred forty-seven million, eight hundred sixty-two thousand, five hundred three".