179149202028 has 18 divisors (see below), whose sum is σ = 452849371884. Its totient is φ = 59716400664.

The previous prime is 179149202021. The next prime is 179149202041. The reversal of 179149202028 is 820202941971.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (179149202021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2488183326 + ... + 2488183397.

It is an arithmetic number, because the mean of its divisors is an integer number (25158298438).

Almost surely, 2^179149202028 is an apocalyptic number.

179149202028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

179149202028 is an abundant number, since it is smaller than the sum of its proper divisors (273700169856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

179149202028 is a wasteful number, since it uses less digits than its factorization.

179149202028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976366733 (or 4976366728 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The spelling of 179149202028 in words is "one hundred seventy-nine billion, one hundred forty-nine million, two hundred two thousand, twenty-eight".