6139976164 has 81 divisors (see below), whose sum is σ = 13012528347. Its totient is φ = 2527515648.

The previous prime is 6139976153. The next prime is 6139976191. The reversal of 6139976164 is 4616799316.

The square root of 6139976164 is 78358.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 365192100 + 5774784064 = 19110^2 + 75992^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 31813252 + ... + 31813444.

Almost surely, 2^6139976164 is an apocalyptic number.

6139976164 is the 78358-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6139976164

6139976164 is an abundant number, since it is smaller than the sum of its proper divisors (6872552183).

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

6139976164 is a wasteful number, since it uses less digits than its factorization.

6139976164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 231 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 52.

The cubic root of 6139976164 is about 1831.1428620178.

The spelling of 6139976164 in words is "six billion, one hundred thirty-nine million, nine hundred seventy-six thousand, one hundred sixty-four".