1924280980409 has 4 divisors (see below), whose sum is σ = 1971214662900. Its totient is φ = 1877347297920.

The previous prime is 1924280980397. The next prime is 1924280980429. The reversal of 1924280980409 is 9040890824291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 137789440000 + 1786491540409 = 371200^2 + 1336597^2 .

It is a cyclic number.

It is not a de Polignac number, because 1924280980409 - 2²⁴ = 1924264203193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1924280980429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23466841184 + ... + 23466841265.

It is an arithmetic number, because the mean of its divisors is an integer number (492803665725).

Almost surely, 2^{1924280980409} is an apocalyptic number.

It is an amenable number.

1924280980409 is a deficient number, since it is larger than the sum of its proper divisors (46933682491).

1924280980409 is an equidigital number, since it uses as much as digits as its factorization.

1924280980409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46933682490.

The product of its (nonzero) digits is 2985984, while the sum is 56.

The spelling of 1924280980409 in words is "one trillion, nine hundred twenty-four billion, two hundred eighty million, nine hundred eighty thousand, four hundred nine".