9019903993 has 8 divisors (see below), whose sum is σ = 9278027712. Its totient is φ = 8762535216.

The previous prime is 9019903973. The next prime is 9019904027. The reversal of 9019903993 is 3993099109.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9019903993 - 2⁵ = 9019903961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9019903993.

It is not an unprimeable number, because it can be changed into a prime (9019903943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 164455 + ... + 212332.

It is an arithmetic number, because the mean of its divisors is an integer number (1159753464).

Almost surely, 2^9019903993 is an apocalyptic number.

It is an amenable number.

9019903993 is a deficient number, since it is larger than the sum of its proper divisors (258123719).

9019903993 is a wasteful number, since it uses less digits than its factorization.

9019903993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377471.

The product of its (nonzero) digits is 531441, while the sum is 52.

The square root of 9019903993 is about 94973.1751232947. The cubic root of 9019903993 is about 2081.6161004736.

The spelling of 9019903993 in words is "nine billion, nineteen million, nine hundred three thousand, nine hundred ninety-three".