29316996921 has 4 divisors (see below), whose sum is σ = 39089329232. Its totient is φ = 19544664612.

The previous prime is 29316996869. The next prime is 29316996937. The reversal of 29316996921 is 12969961392.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 29316996921 - 2²¹ = 29314899769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (29316996991) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4886166151 + ... + 4886166156.

It is an arithmetic number, because the mean of its divisors is an integer number (9772332308).

Almost surely, 2^29316996921 is an apocalyptic number.

It is an amenable number.

29316996921 is a deficient number, since it is larger than the sum of its proper divisors (9772332311).

29316996921 is an equidigital number, since it uses as much as digits as its factorization.

29316996921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9772332310.

The product of its digits is 2834352, while the sum is 57.

The spelling of 29316996921 in words is "twenty-nine billion, three hundred sixteen million, nine hundred ninety-six thousand, nine hundred twenty-one".