72219333815 has 16 divisors (see below), whose sum is σ = 87858628992. Its totient is φ = 56983274784.

The previous prime is 72219333779. The next prime is 72219333829. The reversal of 72219333815 is 51833391227.

It is a cyclic number.

It is not a de Polignac number, because 72219333815 - 2¹² = 72219329719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175889 + ... + 418778.

It is an arithmetic number, because the mean of its divisors is an integer number (5491164312).

Almost surely, 2^72219333815 is an apocalyptic number.

72219333815 is a deficient number, since it is larger than the sum of its proper divisors (15639295177).

72219333815 is a wasteful number, since it uses less digits than its factorization.

72219333815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595006.

The product of its digits is 272160, while the sum is 44.

The spelling of 72219333815 in words is "seventy-two billion, two hundred nineteen million, three hundred thirty-three thousand, eight hundred fifteen".