9774257953 has 2 divisors, whose sum is σ = 9774257954. Its totient is φ = 9774257952.

The previous prime is 9774257939. The next prime is 9774258029. The reversal of 9774257953 is 3597524779.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5498667409 + 4275590544 = 74153^2 + 65388^2 .

It is an emirp because it is prime and its reverse (3597524779) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9774257953 - 2²⁵ = 9740703521 is a prime.

It is a super-2 number, since 2×9774257953² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9774257923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4887128976 + 4887128977.

It is an arithmetic number, because the mean of its divisors is an integer number (4887128977).

Almost surely, 2^9774257953 is an apocalyptic number.

It is an amenable number.

9774257953 is a deficient number, since it is larger than the sum of its proper divisors (1).

9774257953 is an equidigital number, since it uses as much as digits as its factorization.

9774257953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16669800, while the sum is 58.

The square root of 9774257953 is about 98864.8469022230. The cubic root of 9774257953 is about 2138.0995992288.

The spelling of 9774257953 in words is "nine billion, seven hundred seventy-four million, two hundred fifty-seven thousand, nine hundred fifty-three".