1263492732893 has 2 divisors, whose sum is σ = 1263492732894. Its totient is φ = 1263492732892.

The previous prime is 1263492732871. The next prime is 1263492732977. The reversal of 1263492732893 is 3982372943621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 922748517604 + 340744215289 = 960598^2 + 583733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1263492732893 - 2⁶ = 1263492732829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1263492735893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631746366446 + 631746366447.

It is an arithmetic number, because the mean of its divisors is an integer number (631746366447).

Almost surely, 2^{1263492732893} is an apocalyptic number.

It is an amenable number.

1263492732893 is a deficient number, since it is larger than the sum of its proper divisors (1).

1263492732893 is an equidigital number, since it uses as much as digits as its factorization.

1263492732893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23514624, while the sum is 59.

The spelling of 1263492732893 in words is "one trillion, two hundred sixty-three billion, four hundred ninety-two million, seven hundred thirty-two thousand, eight hundred ninety-three".