4565489642 has 48 divisors (see below), whose sum is σ = 8228491272. Its totient is φ = 1893265920.

The previous prime is 4565489609. The next prime is 4565489671. The reversal of 4565489642 is 2469845654.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4425043441 + 140446201 = 66521^2 + 11851^2 .

It is a Harshad number since it is a multiple of its sum of digits (53).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 373142 + ... + 385182.

Almost surely, 2^4565489642 is an apocalyptic number.

4565489642 is a deficient number, since it is larger than the sum of its proper divisors (3663001630).

4565489642 is a wasteful number, since it uses less digits than its factorization.

4565489642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12183 (or 12176 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 53.

The square root of 4565489642 is about 67568.4071293678. The cubic root of 4565489642 is about 1658.9340475956.

The spelling of 4565489642 in words is "four billion, five hundred sixty-five million, four hundred eighty-nine thousand, six hundred forty-two".