5139658623 has 16 divisors (see below), whose sum is σ = 7616923776. Its totient is φ = 3056171040.

The previous prime is 5139658619. The next prime is 5139658649. The reversal of 5139658623 is 3268569315.

It is not a de Polignac number, because 5139658623 - 2² = 5139658619 is a prime.

It is a super-2 number, since 2×5139658623² = 52832181521956512258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5139650623) 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, 1467565 + ... + 1471062.

It is an arithmetic number, because the mean of its divisors is an integer number (476057736).

Almost surely, 2^5139658623 is an apocalyptic number.

5139658623 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

5139658623 is a deficient number, since it is larger than the sum of its proper divisors (2477265153).

5139658623 is a wasteful number, since it uses less digits than its factorization.

5139658623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938694.

The product of its digits is 1166400, while the sum is 48.

The square root of 5139658623 is about 71691.4124773672. The cubic root of 5139658623 is about 1725.7508316382.

The spelling of 5139658623 in words is "five billion, one hundred thirty-nine million, six hundred fifty-eight thousand, six hundred twenty-three".