5128260372 has 18 divisors (see below), whose sum is σ = 12963102698. Its totient is φ = 1709420112.

The previous prime is 5128260329. The next prime is 5128260377. The reversal of 5128260372 is 2730628215.

5128260372 is a `hidden beast` number, since 5 + 1 + 28 + 260 + 372 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2644633476 + 2483626896 = 51426^2 + 49836^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 142451677 = 5128260372 / (5 + 1 + 2 + 8 + 2 + 6 + 0 + 3 + 7 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5128260377) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71225803 + ... + 71225874.

Almost surely, 2^5128260372 is an apocalyptic number.

It is an amenable number.

5128260372 is an abundant number, since it is smaller than the sum of its proper divisors (7834842326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5128260372 is a wasteful number, since it uses less digits than its factorization.

5128260372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142451687 (or 142451682 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 5128260372 is about 71611.8731217108. The cubic root of 5128260372 is about 1724.4741515000.

Adding to 5128260372 its reverse (2730628215), we get a palindrome (7858888587).

The spelling of 5128260372 in words is "five billion, one hundred twenty-eight million, two hundred sixty thousand, three hundred seventy-two".