2572724664 has 24 divisors (see below), whose sum is σ = 6967796160. Its totient is φ = 857574864.

The previous prime is 2572724641. The next prime is 2572724669. The reversal of 2572724664 is 4664272752.

It is a happy number.

2572724664 is a `hidden beast` number, since 2 + 572 + 72 + 4 + 6 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2572724669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17866072 + ... + 17866215.

It is an arithmetic number, because the mean of its divisors is an integer number (290324840).

Almost surely, 2^2572724664 is an apocalyptic number.

2572724664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2572724664 is an abundant number, since it is smaller than the sum of its proper divisors (4395071496).

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

2572724664 is a wasteful number, since it uses less digits than its factorization.

2572724664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35732299 (or 35732292 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 45.

The square root of 2572724664 is about 50722.0333188645. The cubic root of 2572724664 is about 1370.2435612218.

The spelling of 2572724664 in words is "two billion, five hundred seventy-two million, seven hundred twenty-four thousand, six hundred sixty-four".