4520787993 has 12 divisors (see below), whose sum is σ = 6537144640. Its totient is φ = 3010573656.

The previous prime is 4520787967. The next prime is 4520788003. The reversal of 4520787993 is 3997870254.

It is not a de Polignac number, because 4520787993 - 2¹⁰ = 4520786969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4520787913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 265021 + ... + 281562.

Almost surely, 2^4520787993 is an apocalyptic number.

It is an amenable number.

4520787993 is a deficient number, since it is larger than the sum of its proper divisors (2016356647).

4520787993 is a wasteful number, since it uses less digits than its factorization.

4520787993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547508 (or 547505 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 54.

The square root of 4520787993 is about 67236.8053449894. The cubic root of 4520787993 is about 1653.5019583321.

The spelling of 4520787993 in words is "four billion, five hundred twenty million, seven hundred eighty-seven thousand, nine hundred ninety-three".