3318886145729 has 32 divisors (see below), whose sum is σ = 4239945216000. Its totient is φ = 2575323658320.

The previous prime is 3318886145699. The next prime is 3318886145749. The reversal of 3318886145729 is 9275416888133.

It is a de Polignac number, because none of the positive numbers 2^k-3318886145729 is a prime.

It is a super-2 number, since 2×3318886145729² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3318886145749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 938507 + ... + 2742000.

It is an arithmetic number, because the mean of its divisors is an integer number (132498288000).

Almost surely, 2^{3318886145729} is an apocalyptic number.

It is an amenable number.

3318886145729 is a deficient number, since it is larger than the sum of its proper divisors (921059070271).

3318886145729 is a wasteful number, since it uses less digits than its factorization.

3318886145729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680778 (or 3680764 counting only the distinct ones).

The product of its digits is 69672960, while the sum is 65.

The spelling of 3318886145729 in words is "three trillion, three hundred eighteen billion, eight hundred eighty-six million, one hundred forty-five thousand, seven hundred twenty-nine".