993503521244 has 24 divisors (see below), whose sum is σ = 1887115120128. Its totient is φ = 454929531840.

The previous prime is 993503521189. The next prime is 993503521259. The reversal of 993503521244 is 442125305399.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75213227 + ... + 75226434.

It is an arithmetic number, because the mean of its divisors is an integer number (78629796672).

Almost surely, 2^993503521244 is an apocalyptic number.

It is an amenable number.

993503521244 is a deficient number, since it is larger than the sum of its proper divisors (893611598884).

993503521244 is a wasteful number, since it uses less digits than its factorization.

993503521244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150439805 (or 150439803 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 47.

The spelling of 993503521244 in words is "nine hundred ninety-three billion, five hundred three million, five hundred twenty-one thousand, two hundred forty-four".