3772344643 has 4 divisors (see below), whose sum is σ = 3778883080. Its totient is φ = 3765806208.

The previous prime is 3772344593. The next prime is 3772344649. The reversal of 3772344643 is 3464432773.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3464432773 = 19 ⋅182338567.

It is a cyclic number.

It is not a de Polignac number, because 3772344643 - 2²¹ = 3770247491 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 3772344643.

It is not an unprimeable number, because it can be changed into a prime (3772344649) 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, 3268353 + ... + 3269506.

It is an arithmetic number, because the mean of its divisors is an integer number (944720770).

Almost surely, 2^3772344643 is an apocalyptic number.

3772344643 is a deficient number, since it is larger than the sum of its proper divisors (6538437).

3772344643 is an equidigital number, since it uses as much as digits as its factorization.

3772344643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538436.

The product of its digits is 1016064, while the sum is 43.

The square root of 3772344643 is about 61419.4158471082. The cubic root of 3772344643 is about 1556.6959220679.

The spelling of 3772344643 in words is "three billion, seven hundred seventy-two million, three hundred forty-four thousand, six hundred forty-three".