93919491939 has 32 divisors (see below), whose sum is σ = 158289832960. Its totient is φ = 48201028992.

The previous prime is 93919491929. The next prime is 93919491947.

93919491939 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 93919491939 - 2⁴ = 93919491923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93919491939.

It is not an unprimeable number, because it can be changed into a prime (93919491929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4638919 + ... + 4659120.

It is an arithmetic number, because the mean of its divisors is an integer number (4946557280).

Almost surely, 2^93919491939 is an apocalyptic number.

93919491939 is a deficient number, since it is larger than the sum of its proper divisors (64370341021).

93919491939 is a wasteful number, since it uses less digits than its factorization.

93919491939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9298099.

The product of its digits is 19131876, while the sum is 66.

The spelling of 93919491939 in words is "ninety-three billion, nine hundred nineteen million, four hundred ninety-one thousand, nine hundred thirty-nine".