93991996399031 has 4 divisors (see below), whose sum is σ = 93992016301632. Its totient is φ = 93991976496432.

The previous prime is 93991996398997. The next prime is 93991996399079. The reversal of 93991996399031 is 13099369919939.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 93991996399031 - 2²² = 93991992204727 is a prime.

It is a super-2 number, since 2×93991996399031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (93991996392031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609370 + ... + 13804856.

It is an arithmetic number, because the mean of its divisors is an integer number (23498004075408).

Almost surely, 2^{93991996399031} is an apocalyptic number.

93991996399031 is a deficient number, since it is larger than the sum of its proper divisors (19902601).

93991996399031 is a wasteful number, since it uses less digits than its factorization.

93991996399031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19902600.

The product of its (nonzero) digits is 774840978, while the sum is 80.

The spelling of 93991996399031 in words is "ninety-three trillion, nine hundred ninety-one billion, nine hundred ninety-six million, three hundred ninety-nine thousand, thirty-one".