72541545714645 has 16 divisors (see below), whose sum is σ = 132647397878400. Its totient is φ = 33161849469504.

The previous prime is 72541545714641. The next prime is 72541545714647. The reversal of 72541545714645 is 54641754514527.

It is not a de Polignac number, because 72541545714645 - 2² = 72541545714641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72541545714641) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 345435931870 + ... + 345435932079.

It is an arithmetic number, because the mean of its divisors is an integer number (8290462367400).

Almost surely, 2^{72541545714645} is an apocalyptic number.

It is an amenable number.

72541545714645 is a deficient number, since it is larger than the sum of its proper divisors (60105852163755).

72541545714645 is a wasteful number, since it uses less digits than its factorization.

72541545714645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 690871863964.

The product of its digits is 94080000, while the sum is 60.

The spelling of 72541545714645 in words is "seventy-two trillion, five hundred forty-one billion, five hundred forty-five million, seven hundred fourteen thousand, six hundred forty-five".