179653945049 has 2 divisors, whose sum is σ = 179653945050. Its totient is φ = 179653945048.

The previous prime is 179653945043. The next prime is 179653945169. The reversal of 179653945049 is 940549356971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148296618649 + 31357326400 = 385093^2 + 177080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-179653945049 is a prime.

It is a super-2 number, since 2×179653945049² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 179653944982 and 179653945000.

It is not a weakly prime, because it can be changed into another prime (179653945043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 89826972524 + 89826972525.

It is an arithmetic number, because the mean of its divisors is an integer number (89826972525).

Almost surely, 2^179653945049 is an apocalyptic number.

It is an amenable number.

179653945049 is a deficient number, since it is larger than the sum of its proper divisors (1).

179653945049 is an equidigital number, since it uses as much as digits as its factorization.

179653945049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36741600, while the sum is 62.

The spelling of 179653945049 in words is "one hundred seventy-nine billion, six hundred fifty-three million, nine hundred forty-five thousand, forty-nine".