93859455995881 has 3 divisors (see below), whose sum is σ = 93859465683991. Its totient is φ = 93859446307772.

The previous prime is 93859455995843. The next prime is 93859455995897. The reversal of 93859455995881 is 18859955495839.

The square root of 93859455995881 is 9688109.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 4178177195481 + 89681278800400 = 2044059^2 + 9470020^2 .

It is not a de Polignac number, because 93859455995881 - 2¹¹ = 93859455993833 is a prime.

It is a super-2 number, since 2×93859455995881² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 93859455995792 and 93859455995801.

It is not an unprimeable number, because it can be changed into a prime (93859455995581) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4844055 + ... + 14532163.

Almost surely, 2^{93859455995881} is an apocalyptic number.

93859455995881 is the 9688109-th square number.

93859455995881 is the 4844055-th centered octagonal number.

It is an amenable number.

93859455995881 is a deficient number, since it is larger than the sum of its proper divisors (9688110).

93859455995881 is an frugal number, since it uses more digits than its factorization.

93859455995881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19376218 (or 9688109 counting only the distinct ones).

The product of its digits is 25194240000, while the sum is 88.

The spelling of 93859455995881 in words is "ninety-three trillion, eight hundred fifty-nine billion, four hundred fifty-five million, nine hundred ninety-five thousand, eight hundred eighty-one".