4645721343 has 4 divisors (see below), whose sum is σ = 6194295128. Its totient is φ = 3097147560.

The previous prime is 4645721329. The next prime is 4645721351. The reversal of 4645721343 is 3431275464.

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

It is not a de Polignac number, because 4645721343 - 2⁶ = 4645721279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645721303) 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 3 ways as a sum of consecutive naturals, for example, 774286888 + ... + 774286893.

It is an arithmetic number, because the mean of its divisors is an integer number (1548573782).

Almost surely, 2^4645721343 is an apocalyptic number.

4645721343 is a deficient number, since it is larger than the sum of its proper divisors (1548573785).

4645721343 is a wasteful number, since it uses less digits than its factorization.

4645721343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548573784.

The product of its digits is 241920, while the sum is 39.

The square root of 4645721343 is about 68159.5286295321. The cubic root of 4645721343 is about 1668.5954393117.

The spelling of 4645721343 in words is "four billion, six hundred forty-five million, seven hundred twenty-one thousand, three hundred forty-three".