11371968637 has 4 divisors (see below), whose sum is σ = 11866402080. Its totient is φ = 10877535196.

The previous prime is 11371968589. The next prime is 11371968653. The reversal of 11371968637 is 73686917311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11371968637 - 2¹¹ = 11371966589 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 (11371968137) 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, 247216687 + ... + 247216732.

It is an arithmetic number, because the mean of its divisors is an integer number (2966600520).

Almost surely, 2^11371968637 is an apocalyptic number.

It is an amenable number.

11371968637 is a deficient number, since it is larger than the sum of its proper divisors (494433443).

11371968637 is an equidigital number, since it uses as much as digits as its factorization.

11371968637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494433442.

The product of its digits is 1143072, while the sum is 52.

The spelling of 11371968637 in words is "eleven billion, three hundred seventy-one million, nine hundred sixty-eight thousand, six hundred thirty-seven".