16773744461 has 4 divisors (see below), whose sum is σ = 17314833024. Its totient is φ = 16232655900.

The previous prime is 16773744439. The next prime is 16773744503. The reversal of 16773744461 is 16444737761.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16444737761 = 571 ⋅28799891.

It is a cyclic number.

It is not a de Polignac number, because 16773744461 - 2¹⁴ = 16773728077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16773744961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270544235 + ... + 270544296.

It is an arithmetic number, because the mean of its divisors is an integer number (4328708256).

Almost surely, 2^16773744461 is an apocalyptic number.

It is an amenable number.

16773744461 is a deficient number, since it is larger than the sum of its proper divisors (541088563).

16773744461 is an equidigital number, since it uses as much as digits as its factorization.

16773744461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541088562.

The product of its digits is 2370816, while the sum is 50.

The spelling of 16773744461 in words is "sixteen billion, seven hundred seventy-three million, seven hundred forty-four thousand, four hundred sixty-one".