11738586643 has 8 divisors (see below), whose sum is σ = 13416499040. Its totient is φ = 10060917120.

The previous prime is 11738586637. The next prime is 11738586677. The reversal of 11738586643 is 34668583711.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11738586643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11738586623) 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 7 ways as a sum of consecutive naturals, for example, 58453 + ... + 163993.

It is an arithmetic number, because the mean of its divisors is an integer number (1677062380).

Almost surely, 2^11738586643 is an apocalyptic number.

11738586643 is a deficient number, since it is larger than the sum of its proper divisors (1677912397).

11738586643 is a wasteful number, since it uses less digits than its factorization.

11738586643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121437.

The product of its digits is 2903040, while the sum is 52.

The spelling of 11738586643 in words is "eleven billion, seven hundred thirty-eight million, five hundred eighty-six thousand, six hundred forty-three".