2381956969 has 4 divisors (see below), whose sum is σ = 2722236544. Its totient is φ = 2041677396.

The previous prime is 2381956949. The next prime is 2381956987. The reversal of 2381956969 is 9696591832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2381956969 - 2¹⁹ = 2381432681 is a prime.

It is a super-2 number, since 2×2381956969² = 11347438004335333922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2381956949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 170139777 + ... + 170139790.

It is an arithmetic number, because the mean of its divisors is an integer number (680559136).

Almost surely, 2^2381956969 is an apocalyptic number.

It is an amenable number.

2381956969 is a deficient number, since it is larger than the sum of its proper divisors (340279575).

2381956969 is an equidigital number, since it uses as much as digits as its factorization.

2381956969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340279574.

The product of its digits is 6298560, while the sum is 58.

The square root of 2381956969 is about 48805.2965260944. The cubic root of 2381956969 is about 1335.5022903822.

The spelling of 2381956969 in words is "two billion, three hundred eighty-one million, nine hundred fifty-six thousand, nine hundred sixty-nine".