72142945806 has 8 divisors (see below), whose sum is σ = 144285891624. Its totient is φ = 24047648600.

The previous prime is 72142945801. The next prime is 72142945817. The reversal of 72142945806 is 60854924127.

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

72142945806 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72142945801) 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, 6011912145 + ... + 6011912156.

It is an arithmetic number, because the mean of its divisors is an integer number (18035736453).

Almost surely, 2^72142945806 is an apocalyptic number.

72142945806 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72142945806 is a wasteful number, since it uses less digits than its factorization.

72142945806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12023824306.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 72142945806 in words is "seventy-two billion, one hundred forty-two million, nine hundred forty-five thousand, eight hundred six".