3192793611921 has 9 divisors (see below), whose sum is σ = 4611820737979. Its totient is φ = 2128525500936.

The previous prime is 3192793611899. The next prime is 3192793611923. The reversal of 3192793611921 is 1291163972913.

The square root of 3192793611921 is 1786839.

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

3192793611921 is a `hidden beast` number, since 3 + 1 + 9 + 279 + 361 + 1 + 9 + 2 + 1 = 666.

3192793611921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1706432753025 + 1486360858896 = 1306305^2 + 1219164^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 3192793611921 - 2¹⁹ = 3192793087633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3192793611923) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5062711 + ... + 5658323.

Almost surely, 2^{3192793611921} is an apocalyptic number.

3192793611921 is the 1786839-th square number.

3192793611921 is the 893420-th centered octagonal number.

It is an amenable number.

3192793611921 is a deficient number, since it is larger than the sum of its proper divisors (1419027126058).

3192793611921 is an frugal number, since it uses more digits than its factorization.

3192793611921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191232 (or 595616 counting only the distinct ones).

The product of its digits is 1102248, while the sum is 54.

The spelling of 3192793611921 in words is "three trillion, one hundred ninety-two billion, seven hundred ninety-three million, six hundred eleven thousand, nine hundred twenty-one".