67369642281 has 12 divisors (see below), whose sum is σ = 99574769008. Its totient is φ = 43868604024.

The previous prime is 67369642253. The next prime is 67369642321. The reversal of 67369642281 is 18224696376.

It is not a de Polignac number, because 67369642281 - 2¹³ = 67369634089 is a prime.

It is a super-2 number, since 2×67369642281² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67369642231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87040495 + ... + 87041268.

Almost surely, 2^67369642281 is an apocalyptic number.

It is an amenable number.

67369642281 is a deficient number, since it is larger than the sum of its proper divisors (32205126727).

67369642281 is a wasteful number, since it uses less digits than its factorization.

67369642281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174081812 (or 174081809 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The spelling of 67369642281 in words is "sixty-seven billion, three hundred sixty-nine million, six hundred forty-two thousand, two hundred eighty-one".