72423667767 has 32 divisors (see below), whose sum is σ = 111711571200. Its totient is φ = 41247710720.

The previous prime is 72423667751. The next prime is 72423667859. The reversal of 72423667767 is 76776632427.

It is a cyclic number.

It is not a de Polignac number, because 72423667767 - 2⁴ = 72423667751 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72423667067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267484 + ... + 465182.

It is an arithmetic number, because the mean of its divisors is an integer number (3490986600).

Almost surely, 2^72423667767 is an apocalyptic number.

72423667767 is a deficient number, since it is larger than the sum of its proper divisors (39287903433).

72423667767 is a wasteful number, since it uses less digits than its factorization.

72423667767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198383.

The product of its digits is 24893568, while the sum is 57.

The spelling of 72423667767 in words is "seventy-two billion, four hundred twenty-three million, six hundred sixty-seven thousand, seven hundred sixty-seven".