117401408091 has 36 divisors (see below), whose sum is σ = 188951164584. Its totient is φ = 70177631040.

The previous prime is 117401408083. The next prime is 117401408149. The reversal of 117401408091 is 190804104711.

It is a happy number.

It is not a de Polignac number, because 117401408091 - 2³ = 117401408083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117401408051) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 658905 + ... + 817898.

Almost surely, 2^117401408091 is an apocalyptic number.

117401408091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117401408091 is a deficient number, since it is larger than the sum of its proper divisors (71549756493).

117401408091 is a wasteful number, since it uses less digits than its factorization.

117401408091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476904 (or 1476890 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The spelling of 117401408091 in words is "one hundred seventeen billion, four hundred one million, four hundred eight thousand, ninety-one".