3774512322561 has 4 divisors (see below), whose sum is σ = 5032683096752. Its totient is φ = 2516341548372.

The previous prime is 3774512322517. The next prime is 3774512322569. The reversal of 3774512322561 is 1652232154773.

3774512322561 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3774512322561 - 2¹³ = 3774512314369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3774512322561.

It is not an unprimeable number, because it can be changed into a prime (3774512322569) 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, 629085387091 + ... + 629085387096.

It is an arithmetic number, because the mean of its divisors is an integer number (1258170774188).

Almost surely, 2^{3774512322561} is an apocalyptic number.

It is an amenable number.

3774512322561 is a deficient number, since it is larger than the sum of its proper divisors (1258170774191).

3774512322561 is a wasteful number, since it uses less digits than its factorization.

3774512322561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258170774190.

The product of its digits is 2116800, while the sum is 48.

The spelling of 3774512322561 in words is "three trillion, seven hundred seventy-four billion, five hundred twelve million, three hundred twenty-two thousand, five hundred sixty-one".