138174486667 has 8 divisors (see below), whose sum is σ = 161136428000. Its totient is φ = 118435273992.

The previous prime is 138174486661. The next prime is 138174486707. The reversal of 138174486667 is 766684471831.

It is not a de Polignac number, because 138174486667 - 2⁷ = 138174486539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138174486661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201420192 + ... + 201420877.

It is an arithmetic number, because the mean of its divisors is an integer number (20142053500).

Almost surely, 2^138174486667 is an apocalyptic number.

138174486667 is a deficient number, since it is larger than the sum of its proper divisors (22961941333).

138174486667 is an frugal number, since it uses more digits than its factorization.

138174486667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402841090 (or 402841076 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 61.

The spelling of 138174486667 in words is "one hundred thirty-eight billion, one hundred seventy-four million, four hundred eighty-six thousand, six hundred sixty-seven".