117853879547 has 6 divisors (see below), whose sum is σ = 120798475524. Its totient is φ = 114979393040.

The previous prime is 117853879531. The next prime is 117853879579. The reversal of 117853879547 is 745978358711.

It is not a de Polignac number, because 117853879547 - 2⁴ = 117853879531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117853879447) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 35053013 + ... + 35056374.

It is an arithmetic number, because the mean of its divisors is an integer number (20133079254).

Almost surely, 2^117853879547 is an apocalyptic number.

117853879547 is a deficient number, since it is larger than the sum of its proper divisors (2944595977).

117853879547 is an frugal number, since it uses more digits than its factorization.

117853879547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70109469 (or 70109428 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 65.

The spelling of 117853879547 in words is "one hundred seventeen billion, eight hundred fifty-three million, eight hundred seventy-nine thousand, five hundred forty-seven".