2541123475440 has 80 divisors (see below), whose sum is σ = 8593617580416. Its totient is φ = 616029932800.

The previous prime is 2541123475439. The next prime is 2541123475453. The reversal of 2541123475440 is 445743211452.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 2541123475392 and 2541123475401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481270746 + ... + 481276025.

Almost surely, 2^{2541123475440} is an apocalyptic number.

2541123475440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2541123475440 is an abundant number, since it is smaller than the sum of its proper divisors (6052494104976).

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

2541123475440 is a wasteful number, since it uses less digits than its factorization.

2541123475440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962546798 (or 962546792 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 42.

Adding to 2541123475440 its reverse (445743211452), we get a palindrome (2986866686892).

The spelling of 2541123475440 in words is "two trillion, five hundred forty-one billion, one hundred twenty-three million, four hundred seventy-five thousand, four hundred forty".