218470279131140 has 12 divisors (see below), whose sum is σ = 458787586175436. Its totient is φ = 87388111652448.

The previous prime is 218470279131127. The next prime is 218470279131149. The reversal of 218470279131140 is 41131972074812.

It can be written as a sum of positive squares in 2 ways, for example, as 54110853696064 + 164359425435076 = 7356008^2 + 12820274^2 .

It is not an unprimeable number, because it can be changed into a prime (218470279131149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5461756978259 + ... + 5461756978298.

It is an arithmetic number, because the mean of its divisors is an integer number (38232298847953).

Almost surely, 2^{218470279131140} is an apocalyptic number.

218470279131140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

218470279131140 is an abundant number, since it is smaller than the sum of its proper divisors (240317307044296).

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

218470279131140 is a wasteful number, since it uses less digits than its factorization.

218470279131140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10923513956566 (or 10923513956564 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 50.

The spelling of 218470279131140 in words is "two hundred eighteen trillion, four hundred seventy billion, two hundred seventy-nine million, one hundred thirty-one thousand, one hundred forty".