645007093483 has 4 divisors (see below), whose sum is σ = 652778263368. Its totient is φ = 637235923600.

The previous prime is 645007093481. The next prime is 645007093499. The reversal of 645007093483 is 384390700546.

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

It is a cyclic number.

It is not a de Polignac number, because 645007093483 - 2¹ = 645007093481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (645007093481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3885584818 + ... + 3885584983.

It is an arithmetic number, because the mean of its divisors is an integer number (163194565842).

Almost surely, 2^645007093483 is an apocalyptic number.

645007093483 is a deficient number, since it is larger than the sum of its proper divisors (7771169885).

645007093483 is an equidigital number, since it uses as much as digits as its factorization.

645007093483 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7771169884.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 645007093483 in words is "six hundred forty-five billion, seven million, ninety-three thousand, four hundred eighty-three".