167997449838779 has 8 divisors (see below), whose sum is σ = 187169305817088. Its totient is φ = 149475487283560.

The previous prime is 167997449838737. The next prime is 167997449838787. The reversal of 167997449838779 is 977838944799761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 167997449838779 - 2³² = 167993154871483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167997449838709) 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, 162473355227 + ... + 162473356260.

It is an arithmetic number, because the mean of its divisors is an integer number (23396163227136).

Almost surely, 2^{167997449838779} is an apocalyptic number.

167997449838779 is a deficient number, since it is larger than the sum of its proper divisors (19171855978309).

167997449838779 is a wasteful number, since it uses less digits than its factorization.

167997449838779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324946711545.

The product of its digits is 290358577152, while the sum is 98.

The spelling of 167997449838779 in words is "one hundred sixty-seven trillion, nine hundred ninety-seven billion, four hundred forty-nine million, eight hundred thirty-eight thousand, seven hundred seventy-nine".