11951789322496 has 27 divisors (see below), whose sum is σ = 23857002380743. Its totient is φ = 5975867004160.

The previous prime is 11951789322463. The next prime is 11951789322533. The reversal of 11951789322496 is 69422398715911.

The square root of 11951789322496 is 3457136.

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

It is a Duffinian number.

It is an unprimeable number.

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 2 ways as a sum of consecutive naturals, for example, 55206141 + ... + 55422211.

Almost surely, 2^{11951789322496} is an apocalyptic number.

11951789322496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

11951789322496 is the 3457136-th square number.

It is an amenable number.

11951789322496 is a deficient number, since it is larger than the sum of its proper divisors (11905213058247).

11951789322496 is an frugal number, since it uses more digits than its factorization.

11951789322496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432158 (or 216073 counting only the distinct ones).

The product of its digits is 58786560, while the sum is 67.

The spelling of 11951789322496 in words is "eleven trillion, nine hundred fifty-one billion, seven hundred eighty-nine million, three hundred twenty-two thousand, four hundred ninety-six".