2540132420005 has 8 divisors (see below), whose sum is σ = 3079583223192. Its totient is φ = 2011156389888.

The previous prime is 2540132420003. The next prime is 2540132420009. The reversal of 2540132420005 is 5000242310452.

It can be written as a sum of positive squares in 4 ways, for example, as 97294710241 + 2442837709764 = 311921^2 + 1562958^2 .

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 2540132420005 - 2¹ = 2540132420003 is a prime.

It is a super-2 number, since 2×2540132420005² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540132420003) 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, 2618692732 + ... + 2618693701.

It is an arithmetic number, because the mean of its divisors is an integer number (384947902899).

Almost surely, 2^{2540132420005} is an apocalyptic number.

It is an amenable number.

2540132420005 is a deficient number, since it is larger than the sum of its proper divisors (539450803187).

2540132420005 is an equidigital number, since it uses as much as digits as its factorization.

2540132420005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5237386535.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 2540132420005 its reverse (5000242310452), we get a palindrome (7540374730457).

The spelling of 2540132420005 in words is "two trillion, five hundred forty billion, one hundred thirty-two million, four hundred twenty thousand, five".