11969427218596 has 9 divisors (see below), whose sum is σ = 20946509741451. Its totient is φ = 5984710149612.

The previous prime is 11969427218579. The next prime is 11969427218597. The reversal of 11969427218596 is 69581272496911.

The square root of 11969427218596 is 3459686.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×11969427218596² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11969427218597) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6054451 + ... + 7784293.

Almost surely, 2^{11969427218596} is an apocalyptic number.

11969427218596 is the 3459686-th square number.

It is an amenable number.

11969427218596 is a deficient number, since it is larger than the sum of its proper divisors (8977082522855).

11969427218596 is an frugal number, since it uses more digits than its factorization.

11969427218596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3459690 (or 1729845 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 70.

The spelling of 11969427218596 in words is "eleven trillion, nine hundred sixty-nine billion, four hundred twenty-seven million, two hundred eighteen thousand, five hundred ninety-six".