5145468644 has 48 divisors (see below), whose sum is σ = 9522551808. Its totient is φ = 2427947808.

The previous prime is 5145468611. The next prime is 5145468649. The reversal of 5145468644 is 4468645415.

It is not an unprimeable number, because it can be changed into a prime (5145468649) 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 15 ways as a sum of consecutive naturals, for example, 2784929 + ... + 2786775.

It is an arithmetic number, because the mean of its divisors is an integer number (198386496).

Almost surely, 2^5145468644 is an apocalyptic number.

It is an amenable number.

5145468644 is a deficient number, since it is larger than the sum of its proper divisors (4377083164).

5145468644 is a wasteful number, since it uses less digits than its factorization.

5145468644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2264 (or 2262 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 47.

The square root of 5145468644 is about 71731.9220709999. The cubic root of 5145468644 is about 1726.4008665620.

The spelling of 5145468644 in words is "five billion, one hundred forty-five million, four hundred sixty-eight thousand, six hundred forty-four".