29971965853 has 8 divisors (see below), whose sum is σ = 31573602720. Its totient is φ = 28372745520.

The previous prime is 29971965851. The next prime is 29971965869. The reversal of 29971965853 is 35856917992.

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

It is a cyclic number.

It is not a de Polignac number, because 29971965853 - 2¹ = 29971965851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29971965851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 578638 + ... + 628303.

It is an arithmetic number, because the mean of its divisors is an integer number (3946700340).

Almost surely, 2^29971965853 is an apocalyptic number.

It is an amenable number.

29971965853 is a deficient number, since it is larger than the sum of its proper divisors (1601636867).

29971965853 is a wasteful number, since it uses less digits than its factorization.

29971965853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208267.

The product of its digits is 36741600, while the sum is 64.

The spelling of 29971965853 in words is "twenty-nine billion, nine hundred seventy-one million, nine hundred sixty-five thousand, eight hundred fifty-three".