118248815745 has 24 divisors (see below), whose sum is σ = 204978534696. Its totient is φ = 63061751808.

The previous prime is 118248815719. The next prime is 118248815749. The reversal of 118248815745 is 547518842811.

118248815745 is a `hidden beast` number, since 1 + 1 + 8 + 2 + 488 + 157 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 16870892544 + 101377923201 = 129888^2 + 318399^2 .

It is a de Polignac number, because none of the positive numbers 2^k-118248815745 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118248815691 and 118248815700.

It is not an unprimeable number, because it can be changed into a prime (118248815749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 647547 + ... + 809823.

It is an arithmetic number, because the mean of its divisors is an integer number (8540772279).

Almost surely, 2^118248815745 is an apocalyptic number.

118248815745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118248815745 is a deficient number, since it is larger than the sum of its proper divisors (86729718951).

118248815745 is a wasteful number, since it uses less digits than its factorization.

118248815745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178481 (or 178478 counting only the distinct ones).

The product of its digits is 2867200, while the sum is 54.

The spelling of 118248815745 in words is "one hundred eighteen billion, two hundred forty-eight million, eight hundred fifteen thousand, seven hundred forty-five".