2123015242544 has 40 divisors (see below), whose sum is σ = 4702549612800. Its totient is φ = 909556458048.

The previous prime is 2123015242529. The next prime is 2123015242547. The reversal of 2123015242544 is 4452425103212.

It is not an unprimeable number, because it can be changed into a prime (2123015242547) 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, 2866844 + ... + 3530555.

It is an arithmetic number, because the mean of its divisors is an integer number (117563740320).

Almost surely, 2^{2123015242544} is an apocalyptic number.

It is an amenable number.

2123015242544 is an abundant number, since it is smaller than the sum of its proper divisors (2579534370256).

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

2123015242544 is a wasteful number, since it uses less digits than its factorization.

2123015242544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400377 (or 6400371 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

The spelling of 2123015242544 in words is "two trillion, one hundred twenty-three billion, fifteen million, two hundred forty-two thousand, five hundred forty-four".