72776042767 has 8 divisors (see below), whose sum is σ = 73834664400. Its totient is φ = 71725065024.

The previous prime is 72776042761. The next prime is 72776042783. The reversal of 72776042767 is 76724067727.

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 72776042767 - 2⁷ = 72776042639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72776042761) 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, 1891792 + ... + 1929877.

It is an arithmetic number, because the mean of its divisors is an integer number (9229333050).

Almost surely, 2^72776042767 is an apocalyptic number.

72776042767 is a deficient number, since it is larger than the sum of its proper divisors (1058621633).

72776042767 is a wasteful number, since it uses less digits than its factorization.

72776042767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821945.

The product of its (nonzero) digits is 9680832, while the sum is 55.

The spelling of 72776042767 in words is "seventy-two billion, seven hundred seventy-six million, forty-two thousand, seven hundred sixty-seven".