174428603021 has 2 divisors, whose sum is σ = 174428603022. Its totient is φ = 174428603020.

The previous prime is 174428602987. The next prime is 174428603099. The reversal of 174428603021 is 120306824471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162619434121 + 11809168900 = 403261^2 + 108670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-174428603021 is a prime.

It is a super-2 number, since 2×174428603021² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (174428623021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87214301510 + 87214301511.

It is an arithmetic number, because the mean of its divisors is an integer number (87214301511).

Almost surely, 2^174428603021 is an apocalyptic number.

It is an amenable number.

174428603021 is a deficient number, since it is larger than the sum of its proper divisors (1).

174428603021 is an equidigital number, since it uses as much as digits as its factorization.

174428603021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 174428603021 in words is "one hundred seventy-four billion, four hundred twenty-eight million, six hundred three thousand, twenty-one".