1056644490427 has 2 divisors, whose sum is σ = 1056644490428. Its totient is φ = 1056644490426.

The previous prime is 1056644490401. The next prime is 1056644490431. The reversal of 1056644490427 is 7240944466501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1056644490427 - 2⁷ = 1056644490299 is a prime.

It is a super-2 number, since 2×1056644490427² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1056644490227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 528322245213 + 528322245214.

It is an arithmetic number, because the mean of its divisors is an integer number (528322245214).

Almost surely, 2^{1056644490427} is an apocalyptic number.

1056644490427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1056644490427 is an equidigital number, since it uses as much as digits as its factorization.

1056644490427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 52.

The spelling of 1056644490427 in words is "one trillion, fifty-six billion, six hundred forty-four million, four hundred ninety thousand, four hundred twenty-seven".