171427226136413 has 32 divisors (see below), whose sum is σ = 198860374056960. Its totient is φ = 146417933914560.

The previous prime is 171427226136373. The next prime is 171427226136431. The reversal of 171427226136413 is 314631622724171.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171427226136413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171427226136443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203321948 + ... + 204163338.

It is an arithmetic number, because the mean of its divisors is an integer number (6214386689280).

Almost surely, 2^{171427226136413} is an apocalyptic number.

171427226136413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

171427226136413 is a deficient number, since it is larger than the sum of its proper divisors (27433147920547).

171427226136413 is a wasteful number, since it uses less digits than its factorization.

171427226136413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860649.

The product of its digits is 2032128, while the sum is 50.

The spelling of 171427226136413 in words is "one hundred seventy-one trillion, four hundred twenty-seven billion, two hundred twenty-six million, one hundred thirty-six thousand, four hundred thirteen".