72776267727 has 8 divisors (see below), whose sum is σ = 97110896640. Its totient is φ = 48479575320.

The previous prime is 72776267713. The next prime is 72776267737.

72776267727 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 72776267727 - 2⁸ = 72776267471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72776267737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9479649 + ... + 9487322.

It is an arithmetic number, because the mean of its divisors is an integer number (12138862080).

Almost surely, 2^72776267727 is an apocalyptic number.

72776267727 is a deficient number, since it is larger than the sum of its proper divisors (24334628913).

72776267727 is a wasteful number, since it uses less digits than its factorization.

72776267727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18968253.

The product of its digits is 33882912, while the sum is 60.

The spelling of 72776267727 in words is "seventy-two billion, seven hundred seventy-six million, two hundred sixty-seven thousand, seven hundred twenty-seven".