2146541644 has 24 divisors (see below), whose sum is σ = 4258323440. Its totient is φ = 938568384.

The previous prime is 2146541641. The next prime is 2146541693. The reversal of 2146541644 is 4461456412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2146541641) 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 7 ways as a sum of consecutive naturals, for example, 1085319 + ... + 1087294.

Almost surely, 2^2146541644 is an apocalyptic number.

It is an amenable number.

2146541644 is a deficient number, since it is larger than the sum of its proper divisors (2111781796).

2146541644 is a wasteful number, since it uses less digits than its factorization.

2146541644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172649 (or 2172647 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

The square root of 2146541644 is about 46330.7850570223. The cubic root of 2146541644 is about 1289.9704826690.

The spelling of 2146541644 in words is "two billion, one hundred forty-six million, five hundred forty-one thousand, six hundred forty-four".