2100254120544 has 72 divisors (see below), whose sum is σ = 5856547791528. Its totient is φ = 658903244800.

The previous prime is 2100254120539. The next prime is 2100254120603. The reversal of 2100254120544 is 4450214520012.

It is a super-2 number, since 2×2100254120544² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37822857 + ... + 37878344.

It is an arithmetic number, because the mean of its divisors is an integer number (81340941549).

Almost surely, 2^{2100254120544} is an apocalyptic number.

2100254120544 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2100254120544 is an abundant number, since it is smaller than the sum of its proper divisors (3756293670984).

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

2100254120544 is a wasteful number, since it uses less digits than its factorization.

2100254120544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75701248 (or 75701223 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 2100254120544 its reverse (4450214520012), we get a palindrome (6550468640556).

The spelling of 2100254120544 in words is "two trillion, one hundred billion, two hundred fifty-four million, one hundred twenty thousand, five hundred forty-four".