72143507215 has 8 divisors (see below), whose sum is σ = 93231609408. Its totient is φ = 53275205280.

The previous prime is 72143507207. The next prime is 72143507237. The reversal of 72143507215 is 51270534127.

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

It is not a de Polignac number, because 72143507215 - 2³ = 72143507207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554949991 + ... + 554950120.

It is an arithmetic number, because the mean of its divisors is an integer number (11653951176).

Almost surely, 2^72143507215 is an apocalyptic number.

72143507215 is a deficient number, since it is larger than the sum of its proper divisors (21088102193).

72143507215 is a wasteful number, since it uses less digits than its factorization.

72143507215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109900129.

The product of its (nonzero) digits is 58800, while the sum is 37.

The spelling of 72143507215 in words is "seventy-two billion, one hundred forty-three million, five hundred seven thousand, two hundred fifteen".