72767423651 has 8 divisors (see below), whose sum is σ = 80276257824. Its totient is φ = 65531638080.

The previous prime is 72767423639. The next prime is 72767423653. The reversal of 72767423651 is 15632476727.

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 72767423651 - 2¹⁰ = 72767422627 is a prime.

It is a super-2 number, since 2×72767423651² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 72767423651.

It is not an unprimeable number, because it can be changed into a prime (72767423653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68261591 + ... + 68262656.

It is an arithmetic number, because the mean of its divisors is an integer number (10034532228).

Almost surely, 2^72767423651 is an apocalyptic number.

72767423651 is a deficient number, since it is larger than the sum of its proper divisors (7508834173).

72767423651 is a wasteful number, since it uses less digits than its factorization.

72767423651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136524301.

The product of its digits is 2963520, while the sum is 50.

The spelling of 72767423651 in words is "seventy-two billion, seven hundred sixty-seven million, four hundred twenty-three thousand, six hundred fifty-one".