5113499728 has 20 divisors (see below), whose sum is σ = 9909413748. Its totient is φ = 2556231680.

The previous prime is 5113499707. The next prime is 5113499737. The reversal of 5113499728 is 8279943115.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1354828864 + 3758670864 = 36808^2 + 61308^2 .

It is a super-4 number, since 4×5113499728⁴ (a number of 40 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56400 + ... + 115792.

Almost surely, 2^5113499728 is an apocalyptic number.

It is an amenable number.

5113499728 is a deficient number, since it is larger than the sum of its proper divisors (4795914020).

5113499728 is a wasteful number, since it uses less digits than its factorization.

5113499728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64782 (or 64776 counting only the distinct ones).

The product of its digits is 544320, while the sum is 49.

The square root of 5113499728 is about 71508.7388226082. The cubic root of 5113499728 is about 1722.8180466990.

The spelling of 5113499728 in words is "five billion, one hundred thirteen million, four hundred ninety-nine thousand, seven hundred twenty-eight".