2152538768 has 20 divisors (see below), whose sum is σ = 4172306988. Its totient is φ = 1075814400.

The previous prime is 2152538761. The next prime is 2152538771. The reversal of 2152538768 is 8678352512.

It can be written as a sum of positive squares in 2 ways, for example, as 1570378384 + 582160384 = 39628^2 + 24128^2 .

It is not an unprimeable number, because it can be changed into a prime (2152538761) 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, 12368 + ... + 66768.

Almost surely, 2^2152538768 is an apocalyptic number.

It is an amenable number.

2152538768 is a deficient number, since it is larger than the sum of its proper divisors (2019768220).

2152538768 is a wasteful number, since it uses less digits than its factorization.

2152538768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56882 (or 56876 counting only the distinct ones).

The product of its digits is 806400, while the sum is 47.

The square root of 2152538768 is about 46395.4606400238. The cubic root of 2152538768 is about 1291.1706953616.

The spelling of 2152538768 in words is "two billion, one hundred fifty-two million, five hundred thirty-eight thousand, seven hundred sixty-eight".