72320310087 has 4 divisors (see below), whose sum is σ = 96427080120. Its totient is φ = 48213540056.

The previous prime is 72320310059. The next prime is 72320310133. The reversal of 72320310087 is 78001302327.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72320310087 - 2³⁴ = 55140440903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72320311087) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 12053385012 + ... + 12053385017.

It is an arithmetic number, because the mean of its divisors is an integer number (24106770030).

Almost surely, 2^72320310087 is an apocalyptic number.

72320310087 is a deficient number, since it is larger than the sum of its proper divisors (24106770033).

72320310087 is a wasteful number, since it uses less digits than its factorization.

72320310087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24106770032.

The product of its (nonzero) digits is 14112, while the sum is 33.

The spelling of 72320310087 in words is "seventy-two billion, three hundred twenty million, three hundred ten thousand, eighty-seven".