67449850387 has 4 divisors (see below), whose sum is σ = 67509594520. Its totient is φ = 67390106256.

The previous prime is 67449850327. The next prime is 67449850399. The reversal of 67449850387 is 78305894476.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67449850387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67449850327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29870373 + ... + 29872630.

It is an arithmetic number, because the mean of its divisors is an integer number (16877398630).

Almost surely, 2^67449850387 is an apocalyptic number.

67449850387 is a deficient number, since it is larger than the sum of its proper divisors (59744133).

67449850387 is a wasteful number, since it uses less digits than its factorization.

67449850387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59744132.

The product of its (nonzero) digits is 40642560, while the sum is 61.

The spelling of 67449850387 in words is "sixty-seven billion, four hundred forty-nine million, eight hundred fifty thousand, three hundred eighty-seven".