172602754886381 has 2 divisors, whose sum is σ = 172602754886382. Its totient is φ = 172602754886380.

The previous prime is 172602754886293. The next prime is 172602754886399. The reversal of 172602754886381 is 183688457206271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96744751763881 + 75858003122500 = 9835891^2 + 8709650^2 .

It is a cyclic number.

It is not a de Polignac number, because 172602754886381 - 2³⁴ = 172585575017197 is a prime.

It is a super-2 number, since 2×172602754886381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172602754886981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86301377443190 + 86301377443191.

It is an arithmetic number, because the mean of its divisors is an integer number (86301377443191).

Almost surely, 2^{172602754886381} is an apocalyptic number.

It is an amenable number.

172602754886381 is a deficient number, since it is larger than the sum of its proper divisors (1).

172602754886381 is an equidigital number, since it uses as much as digits as its factorization.

172602754886381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216760320, while the sum is 68.

The spelling of 172602754886381 in words is "one hundred seventy-two trillion, six hundred two billion, seven hundred fifty-four million, eight hundred eighty-six thousand, three hundred eighty-one".