11251936879 has 4 divisors (see below), whose sum is σ = 11260749384. Its totient is φ = 11243124376.

The previous prime is 11251936849. The next prime is 11251936903. The reversal of 11251936879 is 97863915211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97863915211 = 113 ⋅866052347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11251936879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11251936849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4404337 + ... + 4406890.

It is an arithmetic number, because the mean of its divisors is an integer number (2815187346).

Almost surely, 2^11251936879 is an apocalyptic number.

11251936879 is a deficient number, since it is larger than the sum of its proper divisors (8812505).

11251936879 is an equidigital number, since it uses as much as digits as its factorization.

11251936879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8812504.

The product of its digits is 816480, while the sum is 52.

The spelling of 11251936879 in words is "eleven billion, two hundred fifty-one million, nine hundred thirty-six thousand, eight hundred seventy-nine".