94399949891 has 4 divisors (see below), whose sum is σ = 101661484512. Its totient is φ = 87138415272.

The previous prime is 94399949879. The next prime is 94399949899. The reversal of 94399949891 is 19894999349.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19894999349 = 311 ⋅63971059.

It is a cyclic number.

It is not a de Polignac number, because 94399949891 - 2⁶ = 94399949827 is a prime.

It is a super-2 number, since 2×94399949891² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (94399949899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3630767291 + ... + 3630767316.

It is an arithmetic number, because the mean of its divisors is an integer number (25415371128).

Almost surely, 2^94399949891 is an apocalyptic number.

94399949891 is a deficient number, since it is larger than the sum of its proper divisors (7261534621).

94399949891 is a wasteful number, since it uses less digits than its factorization.

94399949891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7261534620.

The product of its digits is 204073344, while the sum is 74.

The spelling of 94399949891 in words is "ninety-four billion, three hundred ninety-nine million, nine hundred forty-nine thousand, eight hundred ninety-one".