9421977586576 has 15 divisors (see below), whose sum is σ = 18255105362833. Its totient is φ = 4710982654240.

The previous prime is 9421977586487. The next prime is 9421977586579. The reversal of 9421977586576 is 6756857791249.

The square root of 9421977586576 is 3069524.

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

It can be written as a sum of positive squares in only one way, i.e., 2639078226576 + 6782899360000 = 1624524^2 + 2604400^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9421977586579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 11894406 + ... + 12661786.

Almost surely, 2^{9421977586576} is an apocalyptic number.

9421977586576 is the 3069524-th square number.

It is an amenable number.

9421977586576 is a deficient number, since it is larger than the sum of its proper divisors (8833127776257).

9421977586576 is an frugal number, since it uses more digits than its factorization.

9421977586576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534770 (or 767383 counting only the distinct ones).

The product of its digits is 1600300800, while the sum is 76.

The spelling of 9421977586576 in words is "nine trillion, four hundred twenty-one billion, nine hundred seventy-seven million, five hundred eighty-six thousand, five hundred seventy-six".