72668686627 has 2 divisors, whose sum is σ = 72668686628. Its totient is φ = 72668686626.

The previous prime is 72668686613. The next prime is 72668686637.

72668686627 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 72668686627 - 2⁷ = 72668686499 is a prime.

It is a super-3 number, since 3×72668686627³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (72668686637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36334343313 + 36334343314.

It is an arithmetic number, because the mean of its divisors is an integer number (36334343314).

Almost surely, 2^72668686627 is an apocalyptic number.

72668686627 is a deficient number, since it is larger than the sum of its proper divisors (1).

72668686627 is an equidigital number, since it uses as much as digits as its factorization.

72668686627 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97542144, while the sum is 64.

The spelling of 72668686627 in words is "seventy-two billion, six hundred sixty-eight million, six hundred eighty-six thousand, six hundred twenty-seven".