117728327265 has 16 divisors (see below), whose sum is σ = 188383041600. Its totient is φ = 62782535232.

The previous prime is 117728327263. The next prime is 117728327293. The reversal of 117728327265 is 562723827711.

It is not a de Polignac number, because 117728327265 - 2¹ = 117728327263 is a prime.

It is a super-2 number, since 2×117728327265² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117728327261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201895 + ... + 525564.

It is an arithmetic number, because the mean of its divisors is an integer number (11773940100).

Almost surely, 2^117728327265 is an apocalyptic number.

117728327265 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117728327265 is a deficient number, since it is larger than the sum of its proper divisors (70654714335).

117728327265 is a wasteful number, since it uses less digits than its factorization.

117728327265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738256.

The product of its digits is 1975680, while the sum is 51.

The spelling of 117728327265 in words is "one hundred seventeen billion, seven hundred twenty-eight million, three hundred twenty-seven thousand, two hundred sixty-five".