5139489950 has 72 divisors (see below), whose sum is σ = 11357032032. Its totient is φ = 1724580480.

The previous prime is 5139489931. The next prime is 5139489961. The reversal of 5139489950 is 599849315.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 5139489892 and 5139489901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92834 + ... + 137466.

It is an arithmetic number, because the mean of its divisors is an integer number (157736556).

Almost surely, 2^5139489950 is an apocalyptic number.

5139489950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

5139489950 is an abundant number, since it is smaller than the sum of its proper divisors (6217542082).

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

5139489950 is a wasteful number, since it uses less digits than its factorization.

5139489950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44706 (or 44694 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 53.

The square root of 5139489950 is about 71690.2360855368. The cubic root of 5139489950 is about 1725.7319529035.

The spelling of 5139489950 in words is "five billion, one hundred thirty-nine million, four hundred eighty-nine thousand, nine hundred fifty".