67198801138 has 32 divisors (see below), whose sum is σ = 120276599040. Its totient is φ = 27531282240.

The previous prime is 67198801099. The next prime is 67198801139. The reversal of 67198801138 is 83110889176.

It is not an unprimeable number, because it can be changed into a prime (67198801139) 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, 500668 + ... + 620536.

It is an arithmetic number, because the mean of its divisors is an integer number (3758643720).

Almost surely, 2^67198801138 is an apocalyptic number.

67198801138 is a deficient number, since it is larger than the sum of its proper divisors (53077797902).

67198801138 is a wasteful number, since it uses less digits than its factorization.

67198801138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121642.

The product of its (nonzero) digits is 580608, while the sum is 52.

The spelling of 67198801138 in words is "sixty-seven billion, one hundred ninety-eight million, eight hundred one thousand, one hundred thirty-eight".