873544062257 has 2 divisors, whose sum is σ = 873544062258. Its totient is φ = 873544062256.

The previous prime is 873544062173. The next prime is 873544062337. The reversal of 873544062257 is 752260445378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443534688256 + 430009374001 = 665984^2 + 655751^2 .

It is a cyclic number.

It is not a de Polignac number, because 873544062257 - 2¹⁸ = 873543800113 is a prime.

It is a super-2 number, since 2×873544062257² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 873544062199 and 873544062208.

It is not a weakly prime, because it can be changed into another prime (873544064257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436772031128 + 436772031129.

It is an arithmetic number, because the mean of its divisors is an integer number (436772031129).

Almost surely, 2^873544062257 is an apocalyptic number.

It is an amenable number.

873544062257 is a deficient number, since it is larger than the sum of its proper divisors (1).

873544062257 is an equidigital number, since it uses as much as digits as its factorization.

873544062257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11289600, while the sum is 53.

The spelling of 873544062257 in words is "eight hundred seventy-three billion, five hundred forty-four million, sixty-two thousand, two hundred fifty-seven".