56189964890 has 8 divisors (see below), whose sum is σ = 101141936820. Its totient is φ = 22475985952.

The previous prime is 56189964889. The next prime is 56189964899. The reversal of 56189964890 is 9846998165.

56189964890 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 2 ways, for example, as 52107649441 + 4082315449 = 228271^2 + 63893^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (56189964899) 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, 2809498235 + ... + 2809498254.

Almost surely, 2^56189964890 is an apocalyptic number.

56189964890 is a deficient number, since it is larger than the sum of its proper divisors (44951971930).

56189964890 is a wasteful number, since it uses less digits than its factorization.

56189964890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618996496.

The product of its (nonzero) digits is 33592320, while the sum is 65.

The spelling of 56189964890 in words is "fifty-six billion, one hundred eighty-nine million, nine hundred sixty-four thousand, eight hundred ninety".