94721917331 has 2 divisors, whose sum is σ = 94721917332. Its totient is φ = 94721917330.

The previous prime is 94721917271. The next prime is 94721917333. The reversal of 94721917331 is 13371912749.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 94721917331 - 2¹⁰ = 94721916307 is a prime.

It is a super-2 number, since 2×94721917331² (a number of 23 digits) contains 22 as substring.

Together with 94721917333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (94721917333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47360958665 + 47360958666.

It is an arithmetic number, because the mean of its divisors is an integer number (47360958666).

Almost surely, 2^94721917331 is an apocalyptic number.

94721917331 is a deficient number, since it is larger than the sum of its proper divisors (1).

94721917331 is an equidigital number, since it uses as much as digits as its factorization.

94721917331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The spelling of 94721917331 in words is "ninety-four billion, seven hundred twenty-one million, nine hundred seventeen thousand, three hundred thirty-one".