179996191947 has 192 divisors, whose sum is σ = 341353958400. Its totient is φ = 89612328960.

The previous prime is 179996191939. The next prime is 179996191967. The reversal of 179996191947 is 749191699971.

It is not a de Polignac number, because 179996191947 - 2³ = 179996191939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (179996191967) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 44784304 + ... + 44788322.

It is an arithmetic number, because the mean of its divisors is an integer number (1777885200).

Almost surely, 2^179996191947 is an apocalyptic number.

179996191947 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

179996191947 is a deficient number, since it is larger than the sum of its proper divisors (161357766453).

179996191947 is a wasteful number, since it uses less digits than its factorization.

179996191947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4178 (or 4175 counting only the distinct ones).

The product of its digits is 69441624, while the sum is 72.

The spelling of 179996191947 in words is "one hundred seventy-nine billion, nine hundred ninety-six million, one hundred ninety-one thousand, nine hundred forty-seven".