11987964468496 has 15 divisors (see below), whose sum is σ = 23226707991063. Its totient is φ = 5993975309520.

The previous prime is 11987964468433. The next prime is 11987964468569. The reversal of 11987964468496 is 69486446978911.

The square root of 11987964468496 is 3462364.

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

It is a super-2 number, since 2×11987964468496² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 13416661 + ... + 14282251.

Almost surely, 2^{11987964468496} is an apocalyptic number.

11987964468496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11987964468496 is the 3462364-th square number.

It is an amenable number.

11987964468496 is a deficient number, since it is larger than the sum of its proper divisors (11238743522567).

11987964468496 is an frugal number, since it uses more digits than its factorization.

11987964468496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731190 (or 865593 counting only the distinct ones).

The product of its digits is 4514807808, while the sum is 82.

The spelling of 11987964468496 in words is "eleven trillion, nine hundred eighty-seven billion, nine hundred sixty-four million, four hundred sixty-eight thousand, four hundred ninety-six".