67214144963739 has 4 divisors (see below), whose sum is σ = 89618859951656. Its totient is φ = 44809429975824.

The previous prime is 67214144963723. The next prime is 67214144963789. The reversal of 67214144963739 is 93736944141276.

It is a happy number.

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

It is not a de Polignac number, because 67214144963739 - 2⁴ = 67214144963723 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67214144963739.

It is not an unprimeable number, because it can be changed into a prime (67214144963789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11202357493954 + ... + 11202357493959.

It is an arithmetic number, because the mean of its divisors is an integer number (22404714987914).

Almost surely, 2^{67214144963739} is an apocalyptic number.

67214144963739 is a deficient number, since it is larger than the sum of its proper divisors (22404714987917).

67214144963739 is a wasteful number, since it uses less digits than its factorization.

67214144963739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22404714987916.

The product of its digits is 164602368, while the sum is 66.

The spelling of 67214144963739 in words is "sixty-seven trillion, two hundred fourteen billion, one hundred forty-four million, nine hundred sixty-three thousand, seven hundred thirty-nine".