5143386645 has 18 divisors (see below), whose sum is σ = 8916037494. Its totient is φ = 2742882960.

The previous prime is 5143386641. The next prime is 5143386653. The reversal of 5143386645 is 5466833415.

5143386645 is a `hidden beast` number, since 514 + 3 + 38 + 66 + 45 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4114709316 + 1028677329 = 64146^2 + 32073^2 .

It is not a de Polignac number, because 5143386645 - 2² = 5143386641 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 5143386645.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5143386641) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 475750 + ... + 486440.

Almost surely, 2^5143386645 is an apocalyptic number.

It is an amenable number.

5143386645 is a deficient number, since it is larger than the sum of its proper divisors (3772650849).

5143386645 is an frugal number, since it uses more digits than its factorization.

5143386645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21393 (or 10699 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

The square root of 5143386645 is about 71717.4082423508. The cubic root of 5143386645 is about 1726.1679852944.

Multiplying 5143386645 by its sum of digits (45), we get a square (231452399025 = 481095²).

5143386645 divided by its sum of digits (45) gives a square (114297481 = 10691²).

The spelling of 5143386645 in words is "five billion, one hundred forty-three million, three hundred eighty-six thousand, six hundred forty-five".