72672664039 has 2 divisors, whose sum is σ = 72672664040. Its totient is φ = 72672664038.

The previous prime is 72672664037. The next prime is 72672664067. The reversal of 72672664039 is 93046627627.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72672664039 - 2¹ = 72672664037 is a prime.

Together with 72672664037, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72672664037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36336332019 + 36336332020.

It is an arithmetic number, because the mean of its divisors is an integer number (36336332020).

Almost surely, 2^72672664039 is an apocalyptic number.

72672664039 is a deficient number, since it is larger than the sum of its proper divisors (1).

72672664039 is an equidigital number, since it uses as much as digits as its factorization.

72672664039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 72672664039 in words is "seventy-two billion, six hundred seventy-two million, six hundred sixty-four thousand, thirty-nine".