4129249292929 has 4 divisors (see below), whose sum is σ = 4147280949460. Its totient is φ = 4111217636400.

The previous prime is 4129249292863. The next prime is 4129249292941. The reversal of 4129249292929 is 9292929429214.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1572959947329 + 2556289345600 = 1254177^2 + 1598840^2 .

It is a cyclic number.

It is not a de Polignac number, because 4129249292929 - 2²⁷ = 4129115075201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4129249292969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9015827922 + ... + 9015828379.

It is an arithmetic number, because the mean of its divisors is an integer number (1036820237365).

Almost surely, 2^{4129249292929} is an apocalyptic number.

It is an amenable number.

4129249292929 is a deficient number, since it is larger than the sum of its proper divisors (18031656531).

4129249292929 is a wasteful number, since it uses less digits than its factorization.

4129249292929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18031656530.

The product of its digits is 30233088, while the sum is 64.

The spelling of 4129249292929 in words is "four trillion, one hundred twenty-nine billion, two hundred forty-nine million, two hundred ninety-two thousand, nine hundred twenty-nine".