993018770894 has 8 divisors (see below), whose sum is σ = 1489646064648. Its totient is φ = 496470082680.

The previous prime is 993018770881. The next prime is 993018770917. The reversal of 993018770894 is 498077810399.

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

It is a self number, because there is not a number n which added to its sum of digits gives 993018770894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19619792 + ... + 19670339.

It is an arithmetic number, because the mean of its divisors is an integer number (186205758081).

Almost surely, 2^993018770894 is an apocalyptic number.

993018770894 is a deficient number, since it is larger than the sum of its proper divisors (496627293754).

993018770894 is a wasteful number, since it uses less digits than its factorization.

993018770894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39302770.

The product of its (nonzero) digits is 27433728, while the sum is 65.

The spelling of 993018770894 in words is "nine hundred ninety-three billion, eighteen million, seven hundred seventy thousand, eight hundred ninety-four".