118431408786 has 32 divisors (see below), whose sum is σ = 256912907328. Its totient is φ = 36248732160.

The previous prime is 118431408763. The next prime is 118431408793. The reversal of 118431408786 is 687804134811.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14155480 + ... + 14163843.

It is an arithmetic number, because the mean of its divisors is an integer number (8028528354).

Almost surely, 2^118431408786 is an apocalyptic number.

118431408786 is an abundant number, since it is smaller than the sum of its proper divisors (138481498542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118431408786 is a wasteful number, since it uses less digits than its factorization.

118431408786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28319386.

The product of its (nonzero) digits is 1032192, while the sum is 51.

The spelling of 118431408786 in words is "one hundred eighteen billion, four hundred thirty-one million, four hundred eight thousand, seven hundred eighty-six".