4047129669 has 16 divisors (see below), whose sum is σ = 5889591360. Its totient is φ = 2451615360.

The previous prime is 4047129641. The next prime is 4047129673. The reversal of 4047129669 is 9669217404.

It is a happy number.

It is not a de Polignac number, because 4047129669 - 2⁸ = 4047129413 is a prime.

It is a super-2 number, since 2×4047129669² = 32758517115400099122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047129469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41827 + ... + 99215.

It is an arithmetic number, because the mean of its divisors is an integer number (368099460).

Almost surely, 2^4047129669 is an apocalyptic number.

It is an amenable number.

4047129669 is a deficient number, since it is larger than the sum of its proper divisors (1842461691).

4047129669 is a wasteful number, since it uses less digits than its factorization.

4047129669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59540.

The product of its (nonzero) digits is 653184, while the sum is 48.

The square root of 4047129669 is about 63617.0548595265. The cubic root of 4047129669 is about 1593.6111991201.

The spelling of 4047129669 in words is "four billion, forty-seven million, one hundred twenty-nine thousand, six hundred sixty-nine".