927399816257 has 2 divisors, whose sum is σ = 927399816258. Its totient is φ = 927399816256.

The previous prime is 927399816223. The next prime is 927399816269. The reversal of 927399816257 is 752618993729.

It is a Cunningham number, because it is equal to 963016²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 927399816256 + 1 = 963016^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 927399816257 - 2¹⁴ = 927399799873 is a prime.

It is a super-2 number, since 2×927399816257² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (927399816157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463699908128 + 463699908129.

It is an arithmetic number, because the mean of its divisors is an integer number (463699908129).

Almost surely, 2^927399816257 is an apocalyptic number.

It is an amenable number.

927399816257 is a deficient number, since it is larger than the sum of its proper divisors (1).

927399816257 is an equidigital number, since it uses as much as digits as its factorization.

927399816257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102876480, while the sum is 68.

The spelling of 927399816257 in words is "nine hundred twenty-seven billion, three hundred ninety-nine million, eight hundred sixteen thousand, two hundred fifty-seven".