4545608640 has 112 divisors (see below), whose sum is σ = 15191963520. Its totient is φ = 1148359680.

The previous prime is 4545608633. The next prime is 4545608663. The reversal of 4545608640 is 468065454.

It is a junction number, because it is equal to n+sod(n) for n = 4545608592 and 4545608601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106366 + ... + 142845.

Almost surely, 2^4545608640 is an apocalyptic number.

4545608640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4545608640 is an abundant number, since it is smaller than the sum of its proper divisors (10646354880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4545608640 is a wasteful number, since it uses less digits than its factorization.

4545608640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249250 (or 249240 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 42.

The square root of 4545608640 is about 67421.1290323738. The cubic root of 4545608640 is about 1656.5225310831.

The spelling of 4545608640 in words is "four billion, five hundred forty-five million, six hundred eight thousand, six hundred forty".