4520643972 has 48 divisors (see below), whose sum is σ = 11364478272. Its totient is φ = 1390366080.

The previous prime is 4520643971. The next prime is 4520643973. The reversal of 4520643972 is 2793460254.

It is an interprime number because it is at equal distance from previous prime (4520643971) and next prime (4520643973).

It is not an unprimeable number, because it can be changed into a prime (4520643971) 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, 472783 + ... + 482249.

It is an arithmetic number, because the mean of its divisors is an integer number (236759964).

Almost surely, 2^4520643972 is an apocalyptic number.

It is an amenable number.

4520643972 is an abundant number, since it is smaller than the sum of its proper divisors (6843834300).

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

4520643972 is a wasteful number, since it uses less digits than its factorization.

4520643972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12548 (or 12546 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 4520643972 is about 67235.7343382223. The cubic root of 4520643972 is about 1653.4843993332.

The spelling of 4520643972 in words is "four billion, five hundred twenty million, six hundred forty-three thousand, nine hundred seventy-two".