13429492985 has 8 divisors (see below), whose sum is σ = 16671094920. Its totient is φ = 10373125504.

The previous prime is 13429492963. The next prime is 13429492991. The reversal of 13429492985 is 58929492431.

It can be written as a sum of positive squares in 4 ways, for example, as 4570165609 + 8859327376 = 67603^2 + 94124^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13429492985 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13429492985.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46308452 + ... + 46308741.

It is an arithmetic number, because the mean of its divisors is an integer number (2083886865).

Almost surely, 2^13429492985 is an apocalyptic number.

It is an amenable number.

13429492985 is a deficient number, since it is larger than the sum of its proper divisors (3241601935).

13429492985 is an equidigital number, since it uses as much as digits as its factorization.

13429492985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92617227.

The product of its digits is 5598720, while the sum is 56.

The spelling of 13429492985 in words is "thirteen billion, four hundred twenty-nine million, four hundred ninety-two thousand, nine hundred eighty-five".