11439956686 has 8 divisors (see below), whose sum is σ = 17161976304. Its totient is φ = 5719297920.

The previous prime is 11439956657. The next prime is 11439956719. The reversal of 11439956686 is 68665993411.

It is a happy number.

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

It is a super-2 number, since 2×11439956686² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11439956686.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 318930 + ... + 352981.

It is an arithmetic number, because the mean of its divisors is an integer number (2145247038).

Almost surely, 2^11439956686 is an apocalyptic number.

11439956686 is a deficient number, since it is larger than the sum of its proper divisors (5722019618).

11439956686 is an equidigital number, since it uses as much as digits as its factorization.

11439956686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680426.

The product of its digits is 8398080, while the sum is 58.

The spelling of 11439956686 in words is "eleven billion, four hundred thirty-nine million, nine hundred fifty-six thousand, six hundred eighty-six".