39219215145 has 24 divisors (see below), whose sum is σ = 68973961728. Its totient is φ = 19015376160.

The previous prime is 39219215107. The next prime is 39219215159. The reversal of 39219215145 is 54151291293.

It is not a de Polignac number, because 39219215145 - 2⁹ = 39219214633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39219215097 and 39219215106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10802377 + ... + 10806006.

It is an arithmetic number, because the mean of its divisors is an integer number (2873915072).

Almost surely, 2^39219215145 is an apocalyptic number.

It is an amenable number.

39219215145 is a deficient number, since it is larger than the sum of its proper divisors (29754746583).

39219215145 is a wasteful number, since it uses less digits than its factorization.

39219215145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21608413 (or 21608402 counting only the distinct ones).

The product of its digits is 97200, while the sum is 42.

The spelling of 39219215145 in words is "thirty-nine billion, two hundred nineteen million, two hundred fifteen thousand, one hundred forty-five".