67631143485 has 32 divisors (see below), whose sum is σ = 110916731520. Its totient is φ = 35189650560.

The previous prime is 67631143441. The next prime is 67631143487. The reversal of 67631143485 is 58434113676.

It is a happy number.

It is not a de Polignac number, because 67631143485 - 2⁶ = 67631143421 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67631143487) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1001106 + ... + 1066524.

It is an arithmetic number, because the mean of its divisors is an integer number (3466147860).

Almost surely, 2^67631143485 is an apocalyptic number.

It is an amenable number.

67631143485 is a deficient number, since it is larger than the sum of its proper divisors (43285588035).

67631143485 is an frugal number, since it uses more digits than its factorization.

67631143485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65550 (or 65468 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The spelling of 67631143485 in words is "sixty-seven billion, six hundred thirty-one million, one hundred forty-three thousand, four hundred eighty-five".