11115643263 has 8 divisors (see below), whose sum is σ = 14823676848. Its totient is φ = 7409019264.

The previous prime is 11115643223. The next prime is 11115643277. The reversal of 11115643263 is 36234651111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11115643263 - 2¹³ = 11115635071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115643223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333856 + ... + 365637.

It is an arithmetic number, because the mean of its divisors is an integer number (1852959606).

Almost surely, 2^11115643263 is an apocalyptic number.

11115643263 is a deficient number, since it is larger than the sum of its proper divisors (3708033585).

11115643263 is an equidigital number, since it uses as much as digits as its factorization.

11115643263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704793.

The product of its digits is 12960, while the sum is 33.

The spelling of 11115643263 in words is "eleven billion, one hundred fifteen million, six hundred forty-three thousand, two hundred sixty-three".