72054132187 has 4 divisors (see below), whose sum is σ = 72063520696. Its totient is φ = 72044743680.

The previous prime is 72054132181. The next prime is 72054132197. The reversal of 72054132187 is 78123145027.

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

It is a cyclic number.

It is not a de Polignac number, because 72054132187 - 2¹¹ = 72054130139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72054132181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4682733 + ... + 4698094.

It is an arithmetic number, because the mean of its divisors is an integer number (18015880174).

Almost surely, 2^72054132187 is an apocalyptic number.

72054132187 is a deficient number, since it is larger than the sum of its proper divisors (9388509).

72054132187 is an equidigital number, since it uses as much as digits as its factorization.

72054132187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9388508.

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 72054132187 in words is "seventy-two billion, fifty-four million, one hundred thirty-two thousand, one hundred eighty-seven".