645302103573 has 16 divisors (see below), whose sum is σ = 913767068736. Its totient is φ = 403672177920.

The previous prime is 645302103569. The next prime is 645302103583. The reversal of 645302103573 is 375301203546.

It is not a de Polignac number, because 645302103573 - 2² = 645302103569 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (645302103553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19096386 + ... + 19130147.

It is an arithmetic number, because the mean of its divisors is an integer number (57110441796).

Almost surely, 2^645302103573 is an apocalyptic number.

It is an amenable number.

645302103573 is a deficient number, since it is larger than the sum of its proper divisors (268464965163).

645302103573 is a wasteful number, since it uses less digits than its factorization.

645302103573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38226884.

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 645302103573 in words is "six hundred forty-five billion, three hundred two million, one hundred three thousand, five hundred seventy-three".