72871645746 has 8 divisors (see below), whose sum is σ = 145743291504. Its totient is φ = 24290548580.

The previous prime is 72871645727. The next prime is 72871645799. The reversal of 72871645746 is 64754617827.

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

72871645746 is an admirable number.

It is an unprimeable number.

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, 6072637140 + ... + 6072637151.

It is an arithmetic number, because the mean of its divisors is an integer number (18217911438).

Almost surely, 2^72871645746 is an apocalyptic number.

72871645746 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.

72871645746 is a wasteful number, since it uses less digits than its factorization.

72871645746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12145274296.

The product of its digits is 15805440, while the sum is 57.

The spelling of 72871645746 in words is "seventy-two billion, eight hundred seventy-one million, six hundred forty-five thousand, seven hundred forty-six".