2203992478973 has 16 divisors (see below), whose sum is σ = 2226461776896. Its totient is φ = 2181577466880.

The previous prime is 2203992478939. The next prime is 2203992479009. The reversal of 2203992478973 is 3798742993022.

It is a cyclic number.

It is not a de Polignac number, because 2203992478973 - 2²⁸ = 2203724043517 is a prime.

It is a super-4 number, since 4×2203992478973⁴ (a number of 50 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203992478573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330281765 + ... + 330288437.

It is an arithmetic number, because the mean of its divisors is an integer number (139153861056).

Almost surely, 2^{2203992478973} is an apocalyptic number.

It is an amenable number.

2203992478973 is a deficient number, since it is larger than the sum of its proper divisors (22469297923).

2203992478973 is a wasteful number, since it uses less digits than its factorization.

2203992478973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10244.

The product of its (nonzero) digits is 82301184, while the sum is 65.

The spelling of 2203992478973 in words is "two trillion, two hundred three billion, nine hundred ninety-two million, four hundred seventy-eight thousand, nine hundred seventy-three".