4122729547 has 4 divisors (see below), whose sum is σ = 4123901320. Its totient is φ = 4121557776.

The previous prime is 4122729509. The next prime is 4122729557. The reversal of 4122729547 is 7459272214.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7459272214 = 2 ⋅3729636107.

It is a cyclic number.

It is not a de Polignac number, because 4122729547 - 2⁷ = 4122729419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4122729557) 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, 580593 + ... + 587650.

It is an arithmetic number, because the mean of its divisors is an integer number (1030975330).

Almost surely, 2^4122729547 is an apocalyptic number.

4122729547 is a deficient number, since it is larger than the sum of its proper divisors (1171773).

4122729547 is a wasteful number, since it uses less digits than its factorization.

4122729547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171772.

The product of its digits is 282240, while the sum is 43.

The square root of 4122729547 is about 64208.4850078243. The cubic root of 4122729547 is about 1603.4728663115.

The spelling of 4122729547 in words is "four billion, one hundred twenty-two million, seven hundred twenty-nine thousand, five hundred forty-seven".