117745650128 has 20 divisors (see below), whose sum is σ = 235998825540. Its totient is φ = 56842727424.

The previous prime is 117745650107. The next prime is 117745650133. The reversal of 117745650128 is 821056547711.

It can be written as a sum of positive squares in 2 ways, for example, as 44744094784 + 73001555344 = 211528^2 + 270188^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126880625 + ... + 126881552.

It is an arithmetic number, because the mean of its divisors is an integer number (11799941277).

Almost surely, 2^117745650128 is an apocalyptic number.

It is an amenable number.

117745650128 is an abundant number, since it is smaller than the sum of its proper divisors (118253175412).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117745650128 is a wasteful number, since it uses less digits than its factorization.

117745650128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253762214 (or 253762208 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 117745650128 in words is "one hundred seventeen billion, seven hundred forty-five million, six hundred fifty thousand, one hundred twenty-eight".