1276250250263 has 4 divisors (see below), whose sum is σ = 1286299464960. Its totient is φ = 1266201035568.

The previous prime is 1276250250169. The next prime is 1276250250269. The reversal of 1276250250263 is 3620520526721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1276250250263 - 2³⁰ = 1275176508439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1276250250263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276250250269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5024607158 + ... + 5024607411.

It is an arithmetic number, because the mean of its divisors is an integer number (321574866240).

Almost surely, 2^{1276250250263} is an apocalyptic number.

1276250250263 is a deficient number, since it is larger than the sum of its proper divisors (10049214697).

1276250250263 is a wasteful number, since it uses less digits than its factorization.

1276250250263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10049214696.

The product of its (nonzero) digits is 302400, while the sum is 41.

Adding to 1276250250263 its reverse (3620520526721), we get a palindrome (4896770776984).

The spelling of 1276250250263 in words is "one trillion, two hundred seventy-six billion, two hundred fifty million, two hundred fifty thousand, two hundred sixty-three".