4645717893 has 18 divisors (see below), whose sum is σ = 6870192966. Its totient is φ = 3025107792.

The previous prime is 4645717889. The next prime is 4645717919. The reversal of 4645717893 is 3987175464.

4645717893 is a `hidden beast` number, since 4 + 64 + 571 + 7 + 8 + 9 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4621688289 + 24029604 = 67983^2 + 4902^2 .

It is not a de Polignac number, because 4645717893 - 2² = 4645717889 is a prime.

It is a super-3 number, since 3×4645717893³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4645717393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 122946 + ... + 156227.

It is an arithmetic number, because the mean of its divisors is an integer number (381677387).

Almost surely, 2^4645717893 is an apocalyptic number.

4645717893 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

4645717893 is a deficient number, since it is larger than the sum of its proper divisors (2224475073).

4645717893 is a wasteful number, since it uses less digits than its factorization.

4645717893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279265 (or 279219 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The square root of 4645717893 is about 68159.5033212537. The cubic root of 4645717893 is about 1668.5950262682.

The spelling of 4645717893 in words is "four billion, six hundred forty-five million, seven hundred seventeen thousand, eight hundred ninety-three".