172874130073 has 2 divisors, whose sum is σ = 172874130074. Its totient is φ = 172874130072.

The previous prime is 172874130053. The next prime is 172874130097. The reversal of 172874130073 is 370031478271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168224663104 + 4649466969 = 410152^2 + 68187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172874130073 is a prime.

It is not a weakly prime, because it can be changed into another prime (172874130053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86437065036 + 86437065037.

It is an arithmetic number, because the mean of its divisors is an integer number (86437065037).

Almost surely, 2^172874130073 is an apocalyptic number.

It is an amenable number.

172874130073 is a deficient number, since it is larger than the sum of its proper divisors (1).

172874130073 is an equidigital number, since it uses as much as digits as its factorization.

172874130073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 197568, while the sum is 43.

The spelling of 172874130073 in words is "one hundred seventy-two billion, eight hundred seventy-four million, one hundred thirty thousand, seventy-three".