4287576645 has 80 divisors (see below), whose sum is σ = 8563408128. Its totient is φ = 2034495360.

The previous prime is 4287576617. The next prime is 4287576649. The reversal of 4287576645 is 5466757824.

It is a happy number.

4287576645 is a `hidden beast` number, since 4 + 2 + 8 + 7 + 576 + 64 + 5 = 666.

It is not a de Polignac number, because 4287576645 - 2¹⁸ = 4287314501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4287576591 and 4287576600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4287576649) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 199147 + ... + 219623.

Almost surely, 2^4287576645 is an apocalyptic number.

4287576645 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4287576645 is a deficient number, since it is larger than the sum of its proper divisors (4275831483).

4287576645 is a wasteful number, since it uses less digits than its factorization.

4287576645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20552 (or 20543 counting only the distinct ones).

The product of its digits is 11289600, while the sum is 54.

The square root of 4287576645 is about 65479.5895298680. The cubic root of 4287576645 is about 1624.5657721034.

The spelling of 4287576645 in words is "four billion, two hundred eighty-seven million, five hundred seventy-six thousand, six hundred forty-five".