2142245214544 has 40 divisors (see below), whose sum is σ = 4267328979368. Its totient is φ = 1041060833280.

The previous prime is 2142245214397. The next prime is 2142245214547. The reversal of 2142245214544 is 4454125422412.

It can be written as a sum of positive squares in 4 ways, for example, as 531021178944 + 1611224035600 = 728712^2 + 1269340^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2142245214497 and 2142245214506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142245214547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376277 + ... + 2485684.

Almost surely, 2^{2142245214544} is an apocalyptic number.

It is an amenable number.

2142245214544 is a deficient number, since it is larger than the sum of its proper divisors (2125083764824).

2142245214544 is a wasteful number, since it uses less digits than its factorization.

2142245214544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862943 (or 3862937 counting only the distinct ones).

The product of its digits is 409600, while the sum is 40.

The spelling of 2142245214544 in words is "two trillion, one hundred forty-two billion, two hundred forty-five million, two hundred fourteen thousand, five hundred forty-four".