72663860519 has 8 divisors (see below), whose sum is σ = 73560348000. Its totient is φ = 71769151872.

The previous prime is 72663860501. The next prime is 72663860539. The reversal of 72663860519 is 91506836627.

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

It is a cyclic number.

It is not a de Polignac number, because 72663860519 - 2⁸ = 72663860263 is a prime.

It is a super-2 number, since 2×72663860519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72663860539) 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 7 ways as a sum of consecutive naturals, for example, 362414 + ... + 525995.

It is an arithmetic number, because the mean of its divisors is an integer number (9195043500).

Almost surely, 2^72663860519 is an apocalyptic number.

72663860519 is a deficient number, since it is larger than the sum of its proper divisors (896487481).

72663860519 is an equidigital number, since it uses as much as digits as its factorization.

72663860519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 889417.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 72663860519 in words is "seventy-two billion, six hundred sixty-three million, eight hundred sixty thousand, five hundred nineteen".