1262640712633 has 2 divisors, whose sum is σ = 1262640712634. Its totient is φ = 1262640712632.

The previous prime is 1262640712621. The next prime is 1262640712637. The reversal of 1262640712633 is 3362170462621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 666528553744 + 596112158889 = 816412^2 + 772083^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262640712633 - 2¹³ = 1262640704441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1262640712633.

It is not a weakly prime, because it can be changed into another prime (1262640712637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631320356316 + 631320356317.

It is an arithmetic number, because the mean of its divisors is an integer number (631320356317).

Almost surely, 2^{1262640712633} is an apocalyptic number.

It is an amenable number.

1262640712633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262640712633 is an equidigital number, since it uses as much as digits as its factorization.

1262640712633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 43.

The spelling of 1262640712633 in words is "one trillion, two hundred sixty-two billion, six hundred forty million, seven hundred twelve thousand, six hundred thirty-three".