174920289949 has 2 divisors, whose sum is σ = 174920289950. Its totient is φ = 174920289948.

The previous prime is 174920289941. The next prime is 174920289979. The reversal of 174920289949 is 949982029471.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131491813924 + 43428476025 = 362618^2 + 208395^2 .

It is a cyclic number.

It is not a de Polignac number, because 174920289949 - 2³ = 174920289941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (174920289941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87460144974 + 87460144975.

It is an arithmetic number, because the mean of its divisors is an integer number (87460144975).

Almost surely, 2^174920289949 is an apocalyptic number.

It is an amenable number.

174920289949 is a deficient number, since it is larger than the sum of its proper divisors (1).

174920289949 is an equidigital number, since it uses as much as digits as its factorization.

174920289949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 174920289949 in words is "one hundred seventy-four billion, nine hundred twenty million, two hundred eighty-nine thousand, nine hundred forty-nine".