2645472972800 has 156 divisors (see below), whose sum is σ = 7497112999296. Its totient is φ = 907019059200.

The previous prime is 2645472972797. The next prime is 2645472972809. The reversal of 2645472972800 is 82792745462.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is not an unprimeable number, because it can be changed into a prime (2645472972809) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1128536 + ... + 2562135.

Almost surely, 2^{2645472972800} is an apocalyptic number.

2645472972800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2645472972800 is an abundant number, since it is smaller than the sum of its proper divisors (4851640026496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2645472972800 is an equidigital number, since it uses as much as digits as its factorization.

2645472972800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690712 (or 3690685 counting only the distinct ones).

The product of its (nonzero) digits is 13547520, while the sum is 56.

The spelling of 2645472972800 in words is "two trillion, six hundred forty-five billion, four hundred seventy-two million, nine hundred seventy-two thousand, eight hundred".