29845571406985 has 16 divisors (see below), whose sum is σ = 35838229731840. Its totient is φ = 23860762086400.

The previous prime is 29845571406941. The next prime is 29845571406991. The reversal of 29845571406985 is 58960417554892.

It is a happy number.

It is not a de Polignac number, because 29845571406985 - 2¹⁵ = 29845571374217 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486505224 + ... + 486566566.

It is an arithmetic number, because the mean of its divisors is an integer number (2239889358240).

Almost surely, 2^{29845571406985} is an apocalyptic number.

It is an amenable number.

29845571406985 is a deficient number, since it is larger than the sum of its proper divisors (5992658324855).

29845571406985 is a wasteful number, since it uses less digits than its factorization.

29845571406985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123728.

The product of its (nonzero) digits is 870912000, while the sum is 73.

The spelling of 29845571406985 in words is "twenty-nine trillion, eight hundred forty-five billion, five hundred seventy-one million, four hundred six thousand, nine hundred eighty-five".