1065788872 has 16 divisors (see below), whose sum is σ = 2036059740. Its totient is φ = 522839616.

The previous prime is 1065788861. The next prime is 1065788879. The reversal of 1065788872 is 2788875601.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1065761316 + 27556 = 32646^2 + 166^2 .

It is a super-2 number, since 2×1065788872² = 2271811839358064768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065788879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256403 + ... + 1257250.

Almost surely, 2^1065788872 is an apocalyptic number.

It is an amenable number.

1065788872 is a deficient number, since it is larger than the sum of its proper divisors (970270868).

1065788872 is a wasteful number, since it uses less digits than its factorization.

1065788872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513712 (or 2513708 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 52.

The square root of 1065788872 is about 32646.4220397887. The cubic root of 1065788872 is about 1021.4655569682.

The spelling of 1065788872 in words is "one billion, sixty-five million, seven hundred eighty-eight thousand, eight hundred seventy-two".