7129889217 has 48 divisors (see below), whose sum is σ = 11811785280. Its totient is φ = 4215456000.

The previous prime is 7129889201. The next prime is 7129889227.

7129889217 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7129889217 - 2⁴ = 7129889201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7129889227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 492117 + ... + 506397.

It is an arithmetic number, because the mean of its divisors is an integer number (246078860).

Almost surely, 2^7129889217 is an apocalyptic number.

It is an amenable number.

7129889217 is a deficient number, since it is larger than the sum of its proper divisors (4681896063).

7129889217 is a wasteful number, since it uses less digits than its factorization.

7129889217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14383 (or 14336 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 54.

The square root of 7129889217 is about 84438.6713360650. The cubic root of 7129889217 is about 1924.6906090273.

The spelling of 7129889217 in words is "seven billion, one hundred twenty-nine million, eight hundred eighty-nine thousand, two hundred seventeen".