72541122062173 has 8 divisors (see below), whose sum is σ = 74327931550656. Its totient is φ = 70755146565600.

The previous prime is 72541122062137. The next prime is 72541122062183. The reversal of 72541122062173 is 37126022114527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72541122062173 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 (72541122062183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208321873 + ... + 208669798.

It is an arithmetic number, because the mean of its divisors is an integer number (9290991443832).

Almost surely, 2^{72541122062173} is an apocalyptic number.

It is an amenable number.

72541122062173 is a deficient number, since it is larger than the sum of its proper divisors (1786809488483).

72541122062173 is a wasteful number, since it uses less digits than its factorization.

72541122062173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416995955.

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 72541122062173 in words is "seventy-two trillion, five hundred forty-one billion, one hundred twenty-two million, sixty-two thousand, one hundred seventy-three".