72673060181 has 16 divisors (see below), whose sum is σ = 80412735744. Its totient is φ = 65386051584.

The previous prime is 72673060151. The next prime is 72673060217. The reversal of 72673060181 is 18106037627.

It is a cyclic number.

It is not a de Polignac number, because 72673060181 - 2¹⁴ = 72673043797 is a prime.

It is a super-2 number, since 2×72673060181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72673060111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1023260 + ... + 1091973.

It is an arithmetic number, because the mean of its divisors is an integer number (5025795984).

Almost surely, 2^72673060181 is an apocalyptic number.

It is an amenable number.

72673060181 is a deficient number, since it is larger than the sum of its proper divisors (7739675563).

72673060181 is a wasteful number, since it uses less digits than its factorization.

72673060181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115340.

The product of its (nonzero) digits is 84672, while the sum is 41.

The spelling of 72673060181 in words is "seventy-two billion, six hundred seventy-three million, sixty thousand, one hundred eighty-one".