128463225117 has 8 divisors (see below), whose sum is σ = 181359847296. Its totient is φ = 80604376512.

The previous prime is 128463225103. The next prime is 128463225127. The reversal of 128463225117 is 711522364821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128463225117 - 2⁸ = 128463224861 is a prime.

It is a super-2 number, since 2×128463225117² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128463225127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1259443333 + ... + 1259443434.

It is an arithmetic number, because the mean of its divisors is an integer number (22669980912).

Almost surely, 2^128463225117 is an apocalyptic number.

128463225117 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

128463225117 is a deficient number, since it is larger than the sum of its proper divisors (52896622179).

128463225117 is a wasteful number, since it uses less digits than its factorization.

128463225117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518886787.

The product of its digits is 161280, while the sum is 42.

Adding to 128463225117 its reverse (711522364821), we get a palindrome (839985589938).

The spelling of 128463225117 in words is "one hundred twenty-eight billion, four hundred sixty-three million, two hundred twenty-five thousand, one hundred seventeen".