1252661356027 has 2 divisors, whose sum is σ = 1252661356028. Its totient is φ = 1252661356026.

The previous prime is 1252661355941. The next prime is 1252661356127. The reversal of 1252661356027 is 7206531662521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252661356027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252661356127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626330678013 + 626330678014.

It is an arithmetic number, because the mean of its divisors is an integer number (626330678014).

Almost surely, 2^{1252661356027} is an apocalyptic number.

1252661356027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252661356027 is an equidigital number, since it uses as much as digits as its factorization.

1252661356027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 1252661356027 in words is "one trillion, two hundred fifty-two billion, six hundred sixty-one million, three hundred fifty-six thousand, twenty-seven".