2543724164 has 6 divisors (see below), whose sum is σ = 4451517294. Its totient is φ = 1271862080.

The previous prime is 2543724151. The next prime is 2543724193. The reversal of 2543724164 is 4614273452.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2479243264 + 64480900 = 49792^2 + 8030^2 .

It is a super-4 number, since 4×2543724164⁴ (a number of 39 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317965517 + ... + 317965524.

It is an arithmetic number, because the mean of its divisors is an integer number (741919549).

Almost surely, 2^2543724164 is an apocalyptic number.

It is an amenable number.

2543724164 is a deficient number, since it is larger than the sum of its proper divisors (1907793130).

2543724164 is a wasteful number, since it uses less digits than its factorization.

2543724164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635931045 (or 635931043 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

The square root of 2543724164 is about 50435.3463753348. The cubic root of 2543724164 is about 1365.0754991404.

The spelling of 2543724164 in words is "two billion, five hundred forty-three million, seven hundred twenty-four thousand, one hundred sixty-four".