67636819334 has 32 divisors (see below), whose sum is σ = 116685398016. Its totient is φ = 28803630240.

The previous prime is 67636819333. The next prime is 67636819399. The reversal of 67636819334 is 43391863676.

It is a self number, because there is not a number n which added to its sum of digits gives 67636819334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67636819331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438619 + ... + 1484889.

It is an arithmetic number, because the mean of its divisors is an integer number (3646418688).

Almost surely, 2^67636819334 is an apocalyptic number.

67636819334 is a deficient number, since it is larger than the sum of its proper divisors (49048578682).

67636819334 is a wasteful number, since it uses less digits than its factorization.

67636819334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46940.

The product of its digits is 11757312, while the sum is 56.

The spelling of 67636819334 in words is "sixty-seven billion, six hundred thirty-six million, eight hundred nineteen thousand, three hundred thirty-four".