118381237478 has 24 divisors (see below), whose sum is σ = 206630707752. Its totient is φ = 50718230304.

The previous prime is 118381237477. The next prime is 118381237501. The reversal of 118381237478 is 874732183811.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118381237477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106226 + ... + 498042.

It is an arithmetic number, because the mean of its divisors is an integer number (8609612823).

Almost surely, 2^118381237478 is an apocalyptic number.

118381237478 is a deficient number, since it is larger than the sum of its proper divisors (88249470274).

118381237478 is a wasteful number, since it uses less digits than its factorization.

118381237478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394916 (or 394909 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 53.

The spelling of 118381237478 in words is "one hundred eighteen billion, three hundred eighty-one million, two hundred thirty-seven thousand, four hundred seventy-eight".