94571221967 has 2 divisors, whose sum is σ = 94571221968. Its totient is φ = 94571221966.

The previous prime is 94571221897. The next prime is 94571221999. The reversal of 94571221967 is 76912217549.

It is a strong prime.

It is an emirp because it is prime and its reverse (76912217549) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 94571221967 - 2¹⁰ = 94571220943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (94571221567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47285610983 + 47285610984.

It is an arithmetic number, because the mean of its divisors is an integer number (47285610984).

Almost surely, 2^94571221967 is an apocalyptic number.

94571221967 is a deficient number, since it is larger than the sum of its proper divisors (1).

94571221967 is an equidigital number, since it uses as much as digits as its factorization.

94571221967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 53.

The spelling of 94571221967 in words is "ninety-four billion, five hundred seventy-one million, two hundred twenty-one thousand, nine hundred sixty-seven".