96721610291 has 4 divisors (see below), whose sum is σ = 97718740392. Its totient is φ = 95724480192.

The previous prime is 96721610287. The next prime is 96721610329. The reversal of 96721610291 is 19201612769.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 96721610291 - 2² = 96721610287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (96721610261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 498564905 + ... + 498565098.

It is an arithmetic number, because the mean of its divisors is an integer number (24429685098).

Almost surely, 2^96721610291 is an apocalyptic number.

96721610291 is a deficient number, since it is larger than the sum of its proper divisors (997130101).

96721610291 is an equidigital number, since it uses as much as digits as its factorization.

96721610291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997130100.

The product of its (nonzero) digits is 81648, while the sum is 44.

The spelling of 96721610291 in words is "ninety-six billion, seven hundred twenty-one million, six hundred ten thousand, two hundred ninety-one".