993890445111 has 48 divisors (see below), whose sum is σ = 1452319165440. Its totient is φ = 654944317440.

The previous prime is 993890445103. The next prime is 993890445137. The reversal of 993890445111 is 111544098399.

It is a happy number.

993890445111 is a `hidden beast` number, since 9 + 9 + 3 + 89 + 0 + 44 + 511 + 1 = 666.

It is not a de Polignac number, because 993890445111 - 2³ = 993890445103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (993890445511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 182664151 + ... + 182669591.

It is an arithmetic number, because the mean of its divisors is an integer number (30256649280).

Almost surely, 2^993890445111 is an apocalyptic number.

993890445111 is a deficient number, since it is larger than the sum of its proper divisors (458428720329).

993890445111 is a wasteful number, since it uses less digits than its factorization.

993890445111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296 (or 6293 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The spelling of 993890445111 in words is "nine hundred ninety-three billion, eight hundred ninety million, four hundred forty-five thousand, one hundred eleven".