117474748478 has 4 divisors (see below), whose sum is σ = 176212122720. Its totient is φ = 58737374238.

The previous prime is 117474748441. The next prime is 117474748541. The reversal of 117474748478 is 874847474711.

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

It is a self number, because there is not a number n which added to its sum of digits gives 117474748478.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29368687118 + ... + 29368687121.

It is an arithmetic number, because the mean of its divisors is an integer number (44053030680).

Almost surely, 2^117474748478 is an apocalyptic number.

117474748478 is a deficient number, since it is larger than the sum of its proper divisors (58737374242).

117474748478 is an equidigital number, since it uses as much as digits as its factorization.

117474748478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58737374241.

The product of its digits is 39337984, while the sum is 62.

The spelling of 117474748478 in words is "one hundred seventeen billion, four hundred seventy-four million, seven hundred forty-eight thousand, four hundred seventy-eight".