29993708590809 has 32 divisors (see below), whose sum is σ = 41078886604800. Its totient is φ = 19455763662720.

The previous prime is 29993708590801. The next prime is 29993708590919. The reversal of 29993708590809 is 90809580739992.

It is not a de Polignac number, because 29993708590809 - 2³ = 29993708590801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29993708590801) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243218037 + ... + 243341325.

It is an arithmetic number, because the mean of its divisors is an integer number (1283715206400).

Almost surely, 2^{29993708590809} is an apocalyptic number.

It is an amenable number.

29993708590809 is a deficient number, since it is larger than the sum of its proper divisors (11085178013991).

29993708590809 is a wasteful number, since it uses less digits than its factorization.

29993708590809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130565.

The product of its (nonzero) digits is 793618560, while the sum is 78.

The spelling of 29993708590809 in words is "twenty-nine trillion, nine hundred ninety-three billion, seven hundred eight million, five hundred ninety thousand, eight hundred nine".