2540545145200 has 120 divisors (see below), whose sum is σ = 6356312562816. Its totient is φ = 974733312000.

The previous prime is 2540545145197. The next prime is 2540545145249. The reversal of 2540545145200 is 25415450452.

It is a self number, because there is not a number n which added to its sum of digits gives 2540545145200.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 494640 + ... + 2307760.

Almost surely, 2^{2540545145200} is an apocalyptic number.

2540545145200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2540545145200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3178156281408).

2540545145200 is an abundant number, since it is smaller than the sum of its proper divisors (3815767417616).

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

2540545145200 is a wasteful number, since it uses less digits than its factorization.

2540545145200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813283 (or 1813272 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 37.

The spelling of 2540545145200 in words is "two trillion, five hundred forty billion, five hundred forty-five million, one hundred forty-five thousand, two hundred".