12118815712470 has 64 divisors (see below), whose sum is σ = 29112669540864. Its totient is φ = 3228628016640.

The previous prime is 12118815712469. The next prime is 12118815712477. The reversal of 12118815712470 is 7421751881121.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12118815712477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378661489 + ... + 378693491.

It is an arithmetic number, because the mean of its divisors is an integer number (454885461576).

Almost surely, 2^{12118815712470} is an apocalyptic number.

12118815712470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12118815712470 is an abundant number, since it is smaller than the sum of its proper divisors (16993853828394).

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

12118815712470 is a wasteful number, since it uses less digits than its factorization.

12118815712470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43557.

The product of its (nonzero) digits is 250880, while the sum is 48.

The spelling of 12118815712470 in words is "twelve trillion, one hundred eighteen billion, eight hundred fifteen million, seven hundred twelve thousand, four hundred seventy".