2118426822512 has 160 divisors (see below), whose sum is σ = 5564380523520. Its totient is φ = 754474383360.

The previous prime is 2118426822509. The next prime is 2118426822539. The reversal of 2118426822512 is 2152286248112.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1007564 + ... + 2291732.

It is an arithmetic number, because the mean of its divisors is an integer number (34777378272).

Almost surely, 2^{2118426822512} is an apocalyptic number.

2118426822512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2118426822512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2782190261760).

2118426822512 is an abundant number, since it is smaller than the sum of its proper divisors (3445953701008).

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

2118426822512 is a wasteful number, since it uses less digits than its factorization.

2118426822512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284311 (or 1284305 counting only the distinct ones).

The product of its digits is 245760, while the sum is 44.

The spelling of 2118426822512 in words is "two trillion, one hundred eighteen billion, four hundred twenty-six million, eight hundred twenty-two thousand, five hundred twelve".