29276852009 has 4 divisors (see below), whose sum is σ = 30286398660. Its totient is φ = 28267305360.

The previous prime is 29276851979. The next prime is 29276852021. The reversal of 29276852009 is 90025867292.

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 20406979609 + 8869872400 = 142853^2 + 94180^2 .

It is a cyclic number.

It is not a de Polignac number, because 29276852009 - 2⁸ = 29276851753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29276852089) 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, 504773282 + ... + 504773339.

It is an arithmetic number, because the mean of its divisors is an integer number (7571599665).

Almost surely, 2^29276852009 is an apocalyptic number.

29276852009 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

29276852009 is a deficient number, since it is larger than the sum of its proper divisors (1009546651).

29276852009 is a wasteful number, since it uses less digits than its factorization.

29276852009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009546650.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 29276852009 in words is "twenty-nine billion, two hundred seventy-six million, eight hundred fifty-two thousand, nine".