93909209293 has 4 divisors (see below), whose sum is σ = 93915723100. Its totient is φ = 93902695488.

The previous prime is 93909209287. The next prime is 93909209299. The reversal of 93909209293 is 39290290939.

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

It is an interprime number because it is at equal distance from previous prime (93909209287) and next prime (93909209299).

It can be written as a sum of positive squares in 2 ways, for example, as 53658016164 + 40251193129 = 231642^2 + 200627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93909209293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93909209299) 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, 3235230 + ... + 3264127.

It is an arithmetic number, because the mean of its divisors is an integer number (23478930775).

Almost surely, 2^93909209293 is an apocalyptic number.

It is an amenable number.

93909209293 is a deficient number, since it is larger than the sum of its proper divisors (6513807).

93909209293 is a wasteful number, since it uses less digits than its factorization.

93909209293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6513806.

The product of its (nonzero) digits is 2125764, while the sum is 55.

The spelling of 93909209293 in words is "ninety-three billion, nine hundred nine million, two hundred nine thousand, two hundred ninety-three".