6129799505 has 8 divisors (see below), whose sum is σ = 7535168424. Its totient is φ = 4784233600.

The previous prime is 6129799493. The next prime is 6129799547. The reversal of 6129799505 is 5059979216.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 508998721 + 5620800784 = 22561^2 + 74972^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6129799505 - 2⁶ = 6129799441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14950526 + ... + 14950935.

It is an arithmetic number, because the mean of its divisors is an integer number (941896053).

Almost surely, 2^6129799505 is an apocalyptic number.

It is an amenable number.

6129799505 is a deficient number, since it is larger than the sum of its proper divisors (1405368919).

6129799505 is a wasteful number, since it uses less digits than its factorization.

6129799505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29901507.

The product of its (nonzero) digits is 1530900, while the sum is 53.

The square root of 6129799505 is about 78293.0361207177. The cubic root of 6129799505 is about 1830.1306310842.

The spelling of 6129799505 in words is "six billion, one hundred twenty-nine million, seven hundred ninety-nine thousand, five hundred five".