1276210653983 has 2 divisors, whose sum is σ = 1276210653984. Its totient is φ = 1276210653982.

The previous prime is 1276210653979. The next prime is 1276210654007. The reversal of 1276210653983 is 3893560126721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1276210653983 - 2² = 1276210653979 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1276210653923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638105326991 + 638105326992.

It is an arithmetic number, because the mean of its divisors is an integer number (638105326992).

Almost surely, 2^{1276210653983} is an apocalyptic number.

1276210653983 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276210653983 is an equidigital number, since it uses as much as digits as its factorization.

1276210653983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 1276210653983 in words is "one trillion, two hundred seventy-six billion, two hundred ten million, six hundred fifty-three thousand, nine hundred eighty-three".