3423772216720 has 80 divisors (see below), whose sum is σ = 7999298012160. Its totient is φ = 1362799590912.

The previous prime is 3423772216681. The next prime is 3423772216721. The reversal of 3423772216720 is 276122773243.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (3423772216721) 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, 44150941 + ... + 44228419.

It is an arithmetic number, because the mean of its divisors is an integer number (99991225152).

Almost surely, 2^{3423772216720} is an apocalyptic number.

It is an amenable number.

3423772216720 is an abundant number, since it is smaller than the sum of its proper divisors (4575525795440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3423772216720 is a wasteful number, since it uses less digits than its factorization.

3423772216720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80192 (or 80186 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 46.

Adding to 3423772216720 its reverse (276122773243), we get a palindrome (3699894989963).

The spelling of 3423772216720 in words is "three trillion, four hundred twenty-three billion, seven hundred seventy-two million, two hundred sixteen thousand, seven hundred twenty".