2540021004511 has 8 divisors (see below), whose sum is σ = 2559499225920. Its totient is φ = 2520556376448.

The previous prime is 2540021004491. The next prime is 2540021004523. The reversal of 2540021004511 is 1154001200452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2540021004511 - 2¹³ = 2540020996319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540021004541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3023031 + ... + 3770776.

It is an arithmetic number, because the mean of its divisors is an integer number (319937403240).

Almost surely, 2^{2540021004511} is an apocalyptic number.

2540021004511 is a deficient number, since it is larger than the sum of its proper divisors (19478221409).

2540021004511 is a wasteful number, since it uses less digits than its factorization.

2540021004511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6796673.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 2540021004511 its reverse (1154001200452), we get a palindrome (3694022204963).

The spelling of 2540021004511 in words is "two trillion, five hundred forty billion, twenty-one million, four thousand, five hundred eleven".