2145682407272 has 16 divisors (see below), whose sum is σ = 4108753546560. Its totient is φ = 1050014794864.

The previous prime is 2145682407233. The next prime is 2145682407287. The reversal of 2145682407272 is 2727042865412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145682407272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2853300698 + ... + 2853301449.

It is an arithmetic number, because the mean of its divisors is an integer number (256797096660).

Almost surely, 2^{2145682407272} is an apocalyptic number.

It is an amenable number.

2145682407272 is a deficient number, since it is larger than the sum of its proper divisors (1963071139288).

2145682407272 is a wasteful number, since it uses less digits than its factorization.

2145682407272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5706602200 (or 5706602196 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 50.

The spelling of 2145682407272 in words is "two trillion, one hundred forty-five billion, six hundred eighty-two million, four hundred seven thousand, two hundred seventy-two".