72150142873 has 4 divisors (see below), whose sum is σ = 72161936308. Its totient is φ = 72138349440.

The previous prime is 72150142871. The next prime is 72150142891. The reversal of 72150142873 is 37824105127.

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

It can be written as a sum of positive squares in 2 ways, for example, as 12109461849 + 60040681024 = 110043^2 + 245032^2 .

It is a cyclic number.

It is not a de Polignac number, because 72150142873 - 2¹ = 72150142871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72150142871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5887536 + ... + 5899777.

It is an arithmetic number, because the mean of its divisors is an integer number (18040484077).

Almost surely, 2^72150142873 is an apocalyptic number.

It is an amenable number.

72150142873 is a deficient number, since it is larger than the sum of its proper divisors (11793435).

72150142873 is a wasteful number, since it uses less digits than its factorization.

72150142873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11793434.

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

The spelling of 72150142873 in words is "seventy-two billion, one hundred fifty million, one hundred forty-two thousand, eight hundred seventy-three".