5129172949 has 8 divisors (see below), whose sum is σ = 5400230240. Its totient is φ = 4858225776.

The previous prime is 5129172941. The next prime is 5129172959. The reversal of 5129172949 is 9492719215.

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

It is a cyclic number.

It is not a de Polignac number, because 5129172949 - 2³ = 5129172941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5129172941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78619 + ... + 128215.

It is an arithmetic number, because the mean of its divisors is an integer number (675028780).

Almost surely, 2^5129172949 is an apocalyptic number.

It is an amenable number.

5129172949 is a deficient number, since it is larger than the sum of its proper divisors (271057291).

5129172949 is a wasteful number, since it uses less digits than its factorization.

5129172949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55059.

The product of its digits is 408240, while the sum is 49.

The square root of 5129172949 is about 71618.2445260982. The cubic root of 5129172949 is about 1724.5764358353.

The spelling of 5129172949 in words is "five billion, one hundred twenty-nine million, one hundred seventy-two thousand, nine hundred forty-nine".