5198253128 has 8 divisors (see below), whose sum is σ = 9746724630. Its totient is φ = 2599126560.

The previous prime is 5198253127. The next prime is 5198253139. The reversal of 5198253128 is 8213528915.

It can be written as a sum of positive squares in only one way, i.e., 4735917124 + 462336004 = 68818^2 + 21502^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5198253127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324890813 + ... + 324890828.

Almost surely, 2^5198253128 is an apocalyptic number.

It is an amenable number.

5198253128 is a deficient number, since it is larger than the sum of its proper divisors (4548471502).

5198253128 is a wasteful number, since it uses less digits than its factorization.

5198253128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649781647 (or 649781643 counting only the distinct ones).

The product of its digits is 172800, while the sum is 44.

The square root of 5198253128 is about 72098.9121138454. The cubic root of 5198253128 is about 1732.2841878206.

The spelling of 5198253128 in words is "five billion, one hundred ninety-eight million, two hundred fifty-three thousand, one hundred twenty-eight".