118712122785 has 24 divisors (see below), whose sum is σ = 205834749120. Its totient is φ = 63292495392.

The previous prime is 118712122783. The next prime is 118712122819. The reversal of 118712122785 is 587221217811.

It is not a de Polignac number, because 118712122785 - 2¹ = 118712122783 is a prime.

It is a super-2 number, since 2×118712122785² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 118712122785.

It is not an unprimeable number, because it can be changed into a prime (118712122783) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 289839 + ... + 566948.

It is an arithmetic number, because the mean of its divisors is an integer number (8576447880).

Almost surely, 2^118712122785 is an apocalyptic number.

118712122785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118712122785 is a deficient number, since it is larger than the sum of its proper divisors (87122626335).

118712122785 is a wasteful number, since it uses less digits than its factorization.

118712122785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859877 (or 859874 counting only the distinct ones).

The product of its digits is 125440, while the sum is 45.

The spelling of 118712122785 in words is "one hundred eighteen billion, seven hundred twelve million, one hundred twenty-two thousand, seven hundred eighty-five".