172425088091 has 2 divisors, whose sum is σ = 172425088092. Its totient is φ = 172425088090.

The previous prime is 172425088051. The next prime is 172425088111. The reversal of 172425088091 is 190880524271.

It is a strong prime.

It is an emirp because it is prime and its reverse (190880524271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172425088091 - 2³⁴ = 155245218907 is a prime.

It is a super-2 number, since 2×172425088091² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (172425088051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86212544045 + 86212544046.

It is an arithmetic number, because the mean of its divisors is an integer number (86212544046).

Almost surely, 2^172425088091 is an apocalyptic number.

172425088091 is a deficient number, since it is larger than the sum of its proper divisors (1).

172425088091 is an equidigital number, since it uses as much as digits as its factorization.

172425088091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 47.

The spelling of 172425088091 in words is "one hundred seventy-two billion, four hundred twenty-five million, eighty-eight thousand, ninety-one".