118778147386 has 4 divisors (see below), whose sum is σ = 178167221082. Its totient is φ = 59389073692.

The previous prime is 118778147377. The next prime is 118778147393. The reversal of 118778147386 is 683741877811.

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

It can be written as a sum of positive squares in only one way, i.e., 116291230225 + 2486917161 = 341015^2 + 49869^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29694536845 + ... + 29694536848.

Almost surely, 2^118778147386 is an apocalyptic number.

118778147386 is a deficient number, since it is larger than the sum of its proper divisors (59389073696).

118778147386 is an equidigital number, since it uses as much as digits as its factorization.

118778147386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59389073695.

The product of its digits is 12644352, while the sum is 61.

The spelling of 118778147386 in words is "one hundred eighteen billion, seven hundred seventy-eight million, one hundred forty-seven thousand, three hundred eighty-six".