93986391081 has 16 divisors (see below), whose sum is σ = 137612832768. Its totient is φ = 56584218000.

The previous prime is 93986391071. The next prime is 93986391133. The reversal of 93986391081 is 18019368939.

It is not a de Polignac number, because 93986391081 - 2⁶ = 93986391017 is a prime.

It is a super-2 number, since 2×93986391081² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (93986391001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9425721 + ... + 9435686.

It is an arithmetic number, because the mean of its divisors is an integer number (8600802048).

Almost surely, 2^93986391081 is an apocalyptic number.

It is an amenable number.

93986391081 is a deficient number, since it is larger than the sum of its proper divisors (43626441687).

93986391081 is a wasteful number, since it uses less digits than its factorization.

93986391081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18861572.

The product of its (nonzero) digits is 2519424, while the sum is 57.

The spelling of 93986391081 in words is "ninety-three billion, nine hundred eighty-six million, three hundred ninety-one thousand, eighty-one".