2545431331040 has 96 divisors (see below), whose sum is σ = 6558141905280. Its totient is φ = 927954653184.

The previous prime is 2545431331033. The next prime is 2545431331043. The reversal of 2545431331040 is 401331345452.

It is a super-2 number, since 2×2545431331040² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545431331043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7581029 + ... + 7909668.

It is an arithmetic number, because the mean of its divisors is an integer number (68313978180).

Almost surely, 2^{2545431331040} is an apocalyptic number.

2545431331040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2545431331040 is an abundant number, since it is smaller than the sum of its proper divisors (4012710574240).

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

2545431331040 is a wasteful number, since it uses less digits than its factorization.

2545431331040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15490804 (or 15490796 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 2545431331040 its reverse (401331345452), we get a palindrome (2946762676492).

The spelling of 2545431331040 in words is "two trillion, five hundred forty-five billion, four hundred thirty-one million, three hundred thirty-one thousand, forty".