72471080772 has 36 divisors (see below), whose sum is σ = 183225159936. Its totient is φ = 24152494320.

The previous prime is 72471080741. The next prime is 72471080779. The reversal of 72471080772 is 27708017427.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (72471080779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8497 + ... + 380807.

It is an arithmetic number, because the mean of its divisors is an integer number (5089587776).

Almost surely, 2^72471080772 is an apocalyptic number.

It is an amenable number.

72471080772 is an abundant number, since it is smaller than the sum of its proper divisors (110754079164).

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

72471080772 is a wasteful number, since it uses less digits than its factorization.

72471080772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377728 (or 377723 counting only the distinct ones).

The product of its (nonzero) digits is 307328, while the sum is 45.

The spelling of 72471080772 in words is "seventy-two billion, four hundred seventy-one million, eighty thousand, seven hundred seventy-two".