72786376163 has 4 divisors (see below), whose sum is σ = 77067927720. Its totient is φ = 68504824608.

The previous prime is 72786376121. The next prime is 72786376207. The reversal of 72786376163 is 36167368727.

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 72786376163 - 2¹² = 72786372067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72786376099 and 72786376108.

It is not an unprimeable number, because it can be changed into a prime (72786376763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2140775753 + ... + 2140775786.

It is an arithmetic number, because the mean of its divisors is an integer number (19266981930).

Almost surely, 2^72786376163 is an apocalyptic number.

72786376163 is a deficient number, since it is larger than the sum of its proper divisors (4281551557).

72786376163 is a wasteful number, since it uses less digits than its factorization.

72786376163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281551556.

The product of its digits is 10668672, while the sum is 56.

The spelling of 72786376163 in words is "seventy-two billion, seven hundred eighty-six million, three hundred seventy-six thousand, one hundred sixty-three".