3218670799945 has 16 divisors (see below), whose sum is σ = 3879697092480. Its totient is φ = 2563421716224.

The previous prime is 3218670799919. The next prime is 3218670799969. The reversal of 3218670799945 is 5499970768123.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 3218670799945 - 2⁵ = 3218670799913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1136122 + ... + 2779948.

It is an arithmetic number, because the mean of its divisors is an integer number (242481068280).

It is a 1-persistent number, because it is pandigital, but 2⋅3218670799945 = 6437341599890 is not.

Almost surely, 2^{3218670799945} is an apocalyptic number.

It is an amenable number.

3218670799945 is a deficient number, since it is larger than the sum of its proper divisors (661026292535).

3218670799945 is a wasteful number, since it uses less digits than its factorization.

3218670799945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645584.

The product of its (nonzero) digits is 205752960, while the sum is 70.

The spelling of 3218670799945 in words is "three trillion, two hundred eighteen billion, six hundred seventy million, seven hundred ninety-nine thousand, nine hundred forty-five".