5128072137 has 12 divisors (see below), whose sum is σ = 7416161220. Its totient is φ = 3414585888.

The previous prime is 5128072129. The next prime is 5128072141. The reversal of 5128072137 is 7312708215.

5128072137 is a `hidden beast` number, since 512 + 8 + 0 + 7 + 2 + 137 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4195930176 + 932141961 = 64776^2 + 30531^2 .

It is not a de Polignac number, because 5128072137 - 2³ = 5128072129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5128072337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 336198 + ... + 351119.

It is an arithmetic number, because the mean of its divisors is an integer number (618013435).

Almost surely, 2^5128072137 is an apocalyptic number.

It is an amenable number.

5128072137 is a deficient number, since it is larger than the sum of its proper divisors (2288089083).

5128072137 is a wasteful number, since it uses less digits than its factorization.

5128072137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688152 (or 688149 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 5128072137 is about 71610.5588373670. The cubic root of 5128072137 is about 1724.4530520537.

The spelling of 5128072137 in words is "five billion, one hundred twenty-eight million, seventy-two thousand, one hundred thirty-seven".