117590128478 has 8 divisors (see below), whose sum is σ = 177946123968. Its totient is φ = 58274753824.

The previous prime is 117590128399. The next prime is 117590128483. The reversal of 117590128478 is 874821095711.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260154926 + ... + 260155377.

It is an arithmetic number, because the mean of its divisors is an integer number (22243265496).

Almost surely, 2^117590128478 is an apocalyptic number.

117590128478 is a deficient number, since it is larger than the sum of its proper divisors (60355995490).

117590128478 is a wasteful number, since it uses less digits than its factorization.

117590128478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520310418.

The product of its (nonzero) digits is 1128960, while the sum is 53.

The spelling of 117590128478 in words is "one hundred seventeen billion, five hundred ninety million, one hundred twenty-eight thousand, four hundred seventy-eight".