2543040000401 has 8 divisors (see below), whose sum is σ = 2545958205000. Its totient is φ = 2540123209728.

The previous prime is 2543040000379. The next prime is 2543040000419. The reversal of 2543040000401 is 1040000403452.

It can be written as a sum of positive squares in 4 ways, for example, as 16288140625 + 2526751859776 = 127625^2 + 1589576^2 .

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 2543040000401 - 2³⁴ = 2525860131217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2543040000421) 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, 3266945 + ... + 3969761.

It is an arithmetic number, because the mean of its divisors is an integer number (318244775625).

Almost surely, 2^{2543040000401} is an apocalyptic number.

It is an amenable number.

2543040000401 is a deficient number, since it is larger than the sum of its proper divisors (2918204599).

2543040000401 is a wasteful number, since it uses less digits than its factorization.

2543040000401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706963.

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 2543040000401 its reverse (1040000403452), we get a palindrome (3583040403853).

The spelling of 2543040000401 in words is "two trillion, five hundred forty-three billion, forty million, four hundred one", and thus it is an aban number.