117648811 has 4 divisors (see below), whose sum is σ = 134455792. Its totient is φ = 100841832.

The previous prime is 117648787. The next prime is 117648821. The reversal of 117648811 is 118846711.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 117648811 - 2⁷ = 117648683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117648821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8403480 + ... + 8403493.

It is an arithmetic number, because the mean of its divisors is an integer number (33613948).

Almost surely, 2^117648811 is an apocalyptic number.

117648811 is a deficient number, since it is larger than the sum of its proper divisors (16806981).

117648811 is an equidigital number, since it uses as much as digits as its factorization.

117648811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16806980.

The product of its digits is 10752, while the sum is 37.

The square root of 117648811 is about 10846.6036619764. The cubic root of 117648811 is about 489.9997376092. Note that the first 3 decimals are identical.

The spelling of 117648811 in words is "one hundred seventeen million, six hundred forty-eight thousand, eight hundred eleven".