72158443288 has 8 divisors (see below), whose sum is σ = 135297081180. Its totient is φ = 36079221640.

The previous prime is 72158443267. The next prime is 72158443337. The reversal of 72158443288 is 88234485127.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4509902698 + ... + 4509902713.

Almost surely, 2^72158443288 is an apocalyptic number.

It is an amenable number.

72158443288 is a deficient number, since it is larger than the sum of its proper divisors (63138637892).

72158443288 is a wasteful number, since it uses less digits than its factorization.

72158443288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9019805417 (or 9019805413 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 52.

The spelling of 72158443288 in words is "seventy-two billion, one hundred fifty-eight million, four hundred forty-three thousand, two hundred eighty-eight".