2872128523 has 16 divisors (see below), whose sum is σ = 3172197600. Its totient is φ = 2578625280.

The previous prime is 2872128509. The next prime is 2872128557. The reversal of 2872128523 is 3258212782.

It is a de Polignac number, because none of the positive numbers 2^k-2872128523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2872123523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1397965 + ... + 1400017.

It is an arithmetic number, because the mean of its divisors is an integer number (198262350).

Almost surely, 2^2872128523 is an apocalyptic number.

2872128523 is a deficient number, since it is larger than the sum of its proper divisors (300069077).

2872128523 is a wasteful number, since it uses less digits than its factorization.

2872128523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3582.

The product of its digits is 107520, while the sum is 40.

The square root of 2872128523 is about 53592.2431234223. The cubic root of 2872128523 is about 1421.4599352110.

The spelling of 2872128523 in words is "two billion, eight hundred seventy-two million, one hundred twenty-eight thousand, five hundred twenty-three".