12540263753 has 2 divisors, whose sum is σ = 12540263754. Its totient is φ = 12540263752.

The previous prime is 12540263657. The next prime is 12540263759. The reversal of 12540263753 is 35736204521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12496333369 + 43930384 = 111787^2 + 6628^2 .

It is a cyclic number.

It is not a de Polignac number, because 12540263753 - 2¹⁰ = 12540262729 is a prime.

It is not a weakly prime, because it can be changed into another prime (12540263759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6270131876 + 6270131877.

It is an arithmetic number, because the mean of its divisors is an integer number (6270131877).

Almost surely, 2^12540263753 is an apocalyptic number.

It is an amenable number.

12540263753 is a deficient number, since it is larger than the sum of its proper divisors (1).

12540263753 is an equidigital number, since it uses as much as digits as its factorization.

12540263753 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The spelling of 12540263753 in words is "twelve billion, five hundred forty million, two hundred sixty-three thousand, seven hundred fifty-three".