5196239138 has 4 divisors (see below), whose sum is σ = 7794358710. Its totient is φ = 2598119568.

The previous prime is 5196239137. The next prime is 5196239173. The reversal of 5196239138 is 8319326915.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8319326915 = 5 ⋅1663865383.

It can be written as a sum of positive squares in only one way, i.e., 3641277649 + 1554961489 = 60343^2 + 39433^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5196239092 and 5196239101.

It is not an unprimeable number, because it can be changed into a prime (5196239131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1299059783 + ... + 1299059786.

Almost surely, 2^5196239138 is an apocalyptic number.

5196239138 is a deficient number, since it is larger than the sum of its proper divisors (2598119572).

5196239138 is a wasteful number, since it uses less digits than its factorization.

5196239138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598119571.

The product of its digits is 349920, while the sum is 47.

The square root of 5196239138 is about 72084.9439064774. The cubic root of 5196239138 is about 1732.0604425479.

The spelling of 5196239138 in words is "five billion, one hundred ninety-six million, two hundred thirty-nine thousand, one hundred thirty-eight".