5139219081 has 16 divisors (see below), whose sum is σ = 7042037184. Its totient is φ = 3331393344.

The previous prime is 5139219049. The next prime is 5139219097. The reversal of 5139219081 is 1809129315.

It is not a de Polignac number, because 5139219081 - 2⁵ = 5139219049 is a prime.

It is a super-2 number, since 2×5139219081² = 52823145525028969122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5139219031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167566 + ... + 195848.

It is an arithmetic number, because the mean of its divisors is an integer number (440127324).

Almost surely, 2^5139219081 is an apocalyptic number.

It is an amenable number.

5139219081 is a deficient number, since it is larger than the sum of its proper divisors (1902818103).

5139219081 is a wasteful number, since it uses less digits than its factorization.

5139219081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29960.

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 5139219081 is about 71688.3468982233. The cubic root of 5139219081 is about 1725.7016350117.

The spelling of 5139219081 in words is "five billion, one hundred thirty-nine million, two hundred nineteen thousand, eighty-one".