2601641128 has 8 divisors (see below), whose sum is σ = 4878077130. Its totient is φ = 1300820560.

The previous prime is 2601641111. The next prime is 2601641129. The reversal of 2601641128 is 8211461062.

It can be written as a sum of positive squares in only one way, i.e., 2340430884 + 261210244 = 48378^2 + 16162^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2601641128² = 13537073117802224768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2601641128.

It is not an unprimeable number, because it can be changed into a prime (2601641129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162602563 + ... + 162602578.

Almost surely, 2^2601641128 is an apocalyptic number.

It is an amenable number.

2601641128 is a deficient number, since it is larger than the sum of its proper divisors (2276436002).

2601641128 is a wasteful number, since it uses less digits than its factorization.

2601641128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325205147 (or 325205143 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2601641128 is about 51006.2851813382. The cubic root of 2601641128 is about 1375.3581221231.

It can be divided in two parts, 2601641 and 128, that added together give a square (2601769 = 1613²).

The spelling of 2601641128 in words is "two billion, six hundred one million, six hundred forty-one thousand, one hundred twenty-eight".