2623115728 has 10 divisors (see below), whose sum is σ = 5082286754. Its totient is φ = 1311557856.

The previous prime is 2623115701. The next prime is 2623115741. The reversal of 2623115728 is 8275113262.

It can be written as a sum of positive squares in only one way, i.e., 2349147024 + 273968704 = 48468^2 + 16552^2 .

It is a super-2 number, since 2×2623115728² = 13761472244961939968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81972351 + ... + 81972382.

Almost surely, 2^2623115728 is an apocalyptic number.

It is an amenable number.

2623115728 is a deficient number, since it is larger than the sum of its proper divisors (2459171026).

2623115728 is a wasteful number, since it uses less digits than its factorization.

2623115728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163944741 (or 163944735 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 2623115728 is about 51216.3619168718. The cubic root of 2623115728 is about 1379.1319416543.

The spelling of 2623115728 in words is "two billion, six hundred twenty-three million, one hundred fifteen thousand, seven hundred twenty-eight".