179494392961 has 4 divisors (see below), whose sum is σ = 193301653972. Its totient is φ = 165687131952.

The previous prime is 179494392929. The next prime is 179494392967. The reversal of 179494392961 is 169293494971.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 118129690000 + 61364702961 = 343700^2 + 247719^2 .

It is a cyclic number.

It is not a de Polignac number, because 179494392961 - 2⁵ = 179494392929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 179494392893 and 179494392902.

It is not an unprimeable number, because it can be changed into a prime (179494392967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6903630486 + ... + 6903630511.

It is an arithmetic number, because the mean of its divisors is an integer number (48325413493).

Almost surely, 2^179494392961 is an apocalyptic number.

It is an amenable number.

179494392961 is a deficient number, since it is larger than the sum of its proper divisors (13807261011).

179494392961 is a wasteful number, since it uses less digits than its factorization.

179494392961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13807261010.

The product of its digits is 26453952, while the sum is 64.

The spelling of 179494392961 in words is "one hundred seventy-nine billion, four hundred ninety-four million, three hundred ninety-two thousand, nine hundred sixty-one".