2545131540321 has 12 divisors (see below), whose sum is σ = 3812460414672. Its totient is φ = 1696754360052.

The previous prime is 2545131540319. The next prime is 2545131540379. The reversal of 2545131540321 is 1230451315452.

2545131540321 is a `hidden beast` number, since 2 + 5 + 4 + 51 + 31 + 540 + 32 + 1 = 666.

It is not a de Polignac number, because 2545131540321 - 2¹ = 2545131540319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2545131540121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5236895931 + ... + 5236896416.

It is an arithmetic number, because the mean of its divisors is an integer number (317705034556).

Almost surely, 2^{2545131540321} is an apocalyptic number.

It is an amenable number.

2545131540321 is a deficient number, since it is larger than the sum of its proper divisors (1267328874351).

2545131540321 is an equidigital number, since it uses as much as digits as its factorization.

2545131540321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10473792362 (or 10473792350 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 2545131540321 its reverse (1230451315452), we get a palindrome (3775582855773).

The spelling of 2545131540321 in words is "two trillion, five hundred forty-five billion, one hundred thirty-one million, five hundred forty thousand, three hundred twenty-one".