175422427421 has 2 divisors, whose sum is σ = 175422427422. Its totient is φ = 175422427420.

The previous prime is 175422427391. The next prime is 175422427451. The reversal of 175422427421 is 124724224571.

It is a balanced prime because it is at equal distance from previous prime (175422427391) and next prime (175422427451).

It can be written as a sum of positive squares in only one way, i.e., 106985251396 + 68437176025 = 327086^2 + 261605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-175422427421 is a prime.

It is a super-2 number, since 2×175422427421² (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 (175422427451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 87711213710 + 87711213711.

It is an arithmetic number, because the mean of its divisors is an integer number (87711213711).

Almost surely, 2^175422427421 is an apocalyptic number.

It is an amenable number.

175422427421 is a deficient number, since it is larger than the sum of its proper divisors (1).

175422427421 is an equidigital number, since it uses as much as digits as its factorization.

175422427421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 250880, while the sum is 41.

The spelling of 175422427421 in words is "one hundred seventy-five billion, four hundred twenty-two million, four hundred twenty-seven thousand, four hundred twenty-one".