2645472972799 has 4 divisors (see below), whose sum is σ = 2784708392440. Its totient is φ = 2506237553160.

The previous prime is 2645472972797. The next prime is 2645472972809. The reversal of 2645472972799 is 9972792745462.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2645472972799 - 2¹ = 2645472972797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2645472972797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69617709792 + ... + 69617709829.

It is an arithmetic number, because the mean of its divisors is an integer number (696177098110).

Almost surely, 2^{2645472972799} is an apocalyptic number.

2645472972799 is a deficient number, since it is larger than the sum of its proper divisors (139235419641).

2645472972799 is a wasteful number, since it uses less digits than its factorization.

2645472972799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139235419640.

The product of its digits is 960180480, while the sum is 73.

The spelling of 2645472972799 in words is "two trillion, six hundred forty-five billion, four hundred seventy-two million, nine hundred seventy-two thousand, seven hundred ninety-nine".