993537204994 has 4 divisors (see below), whose sum is σ = 1490305807494. Its totient is φ = 496768602496.

The previous prime is 993537204931. The next prime is 993537204997. The reversal of 993537204994 is 499402735399.

993537204994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499402735399 = 37 ⋅13497371227.

It can be written as a sum of positive squares in only one way, i.e., 651470136769 + 342067068225 = 807137^2 + 584865^2 .

It is not an unprimeable number, because it can be changed into a prime (993537204997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248384301247 + ... + 248384301250.

Almost surely, 2^993537204994 is an apocalyptic number.

993537204994 is a deficient number, since it is larger than the sum of its proper divisors (496768602500).

993537204994 is a wasteful number, since it uses less digits than its factorization.

993537204994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496768602499.

The product of its (nonzero) digits is 66134880, while the sum is 64.

The spelling of 993537204994 in words is "nine hundred ninety-three billion, five hundred thirty-seven million, two hundred four thousand, nine hundred ninety-four".