5961881969 has 4 divisors (see below), whose sum is σ = 5998458096. Its totient is φ = 5925305844.

The previous prime is 5961881941. The next prime is 5961881987. The reversal of 5961881969 is 9691881695.

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 a de Polignac number, because none of the positive numbers 2^k-5961881969 is a prime.

It is a super-2 number, since 2×5961881969² = 71088073224574633922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5961881069) 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 3 ways as a sum of consecutive naturals, for example, 18287819 + ... + 18288144.

It is an arithmetic number, because the mean of its divisors is an integer number (1499614524).

Almost surely, 2^5961881969 is an apocalyptic number.

It is an amenable number.

5961881969 is a deficient number, since it is larger than the sum of its proper divisors (36576127).

5961881969 is a wasteful number, since it uses less digits than its factorization.

5961881969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36576126.

The product of its digits is 8398080, while the sum is 62.

The square root of 5961881969 is about 77213.2240552096. The cubic root of 5961881969 is about 1813.2643561978.

The spelling of 5961881969 in words is "five billion, nine hundred sixty-one million, eight hundred eighty-one thousand, nine hundred sixty-nine".