4471998129 has 9 divisors (see below), whose sum is σ = 6459842649. Its totient is φ = 2981198340.

The previous prime is 4471998103. The next prime is 4471998133. The reversal of 4471998129 is 9218991744.

The square root of 4471998129 is 66873.

It is a perfect power (a square), and thus also a powerful number.

4471998129 is a `hidden beast` number, since 4 + 471 + 99 + 81 + 2 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 4471998129 - 2⁷ = 4471998001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4471998149) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 189474 + ... + 211764.

Almost surely, 2^4471998129 is an apocalyptic number.

4471998129 is the 66873-rd square number.

4471998129 is the 33437-th centered octagonal number.

It is an amenable number.

4471998129 is a deficient number, since it is larger than the sum of its proper divisors (1987844520).

4471998129 is an frugal number, since it uses more digits than its factorization.

4471998129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44588 (or 22294 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 54.

The cubic root of 4471998129 is about 1647.5320470907.

The spelling of 4471998129 in words is "four billion, four hundred seventy-one million, nine hundred ninety-eight thousand, one hundred twenty-nine".