67637644673675 has 48 divisors (see below), whose sum is σ = 89172474471360. Its totient is φ = 50778681507840.

The previous prime is 67637644673609. The next prime is 67637644673681. The reversal of 67637644673675 is 57637644673676.

It is not a de Polignac number, because 67637644673675 - 2⁸ = 67637644673419 is a prime.

It is a Smith number, since the sum of its digits (77) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 67637644673596 and 67637644673605.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1047362987 + ... + 1047427563.

It is an arithmetic number, because the mean of its divisors is an integer number (1857759884820).

Almost surely, 2^{67637644673675} is an apocalyptic number.

67637644673675 is a deficient number, since it is larger than the sum of its proper divisors (21534829797685).

67637644673675 is a wasteful number, since it uses less digits than its factorization.

67637644673675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99032 (or 99027 counting only the distinct ones).

The product of its digits is 13442526720, while the sum is 77.

Subtracting from 67637644673675 its reverse (57637644673676), we obtain a palindrome (9999999999999).

The spelling of 67637644673675 in words is "sixty-seven trillion, six hundred thirty-seven billion, six hundred forty-four million, six hundred seventy-three thousand, six hundred seventy-five".