72329932856 has 8 divisors (see below), whose sum is σ = 135618624120. Its totient is φ = 36164966424.

The previous prime is 72329932841. The next prime is 72329932877. The reversal of 72329932856 is 65823992327.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4520620796 + ... + 4520620811.

It is an arithmetic number, because the mean of its divisors is an integer number (16952328015).

Almost surely, 2^72329932856 is an apocalyptic number.

It is an amenable number.

72329932856 is a deficient number, since it is larger than the sum of its proper divisors (63288691264).

72329932856 is a wasteful number, since it uses less digits than its factorization.

72329932856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041241613 (or 9041241609 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 56.

The spelling of 72329932856 in words is "seventy-two billion, three hundred twenty-nine million, nine hundred thirty-two thousand, eight hundred fifty-six".