4621989166 has 4 divisors (see below), whose sum is σ = 6932983752. Its totient is φ = 2310994582.

The previous prime is 4621989161. The next prime is 4621989193. The reversal of 4621989166 is 6619891264.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4621989161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155497290 + ... + 1155497293.

It is an arithmetic number, because the mean of its divisors is an integer number (1733245938).

Almost surely, 2^4621989166 is an apocalyptic number.

4621989166 is a deficient number, since it is larger than the sum of its proper divisors (2310994586).

4621989166 is a wasteful number, since it uses less digits than its factorization.

4621989166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310994585.

The product of its digits is 1119744, while the sum is 52.

The square root of 4621989166 is about 67985.2128480893. The cubic root of 4621989166 is about 1665.7493061936.

The spelling of 4621989166 in words is "four billion, six hundred twenty-one million, nine hundred eighty-nine thousand, one hundred sixty-six".