29147879125 has 16 divisors (see below), whose sum is σ = 38516353200. Its totient is φ = 21946636800.

The previous prime is 29147879107. The next prime is 29147879141. The reversal of 29147879125 is 52197874192.

It can be written as a sum of positive squares in 8 ways, for example, as 574033681 + 28573845444 = 23959^2 + 169038^2 .

It is not a de Polignac number, because 29147879125 - 2²⁹ = 28611008213 is a prime.

It is a super-2 number, since 2×29147879125² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 6856200 + ... + 6860449.

It is an arithmetic number, because the mean of its divisors is an integer number (2407272075).

Almost surely, 2^29147879125 is an apocalyptic number.

29147879125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

29147879125 is a deficient number, since it is larger than the sum of its proper divisors (9368474075).

29147879125 is a wasteful number, since it uses less digits than its factorization.

29147879125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13716681 (or 13716671 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 55.

The spelling of 29147879125 in words is "twenty-nine billion, one hundred forty-seven million, eight hundred seventy-nine thousand, one hundred twenty-five".