2578531084140 has 48 divisors (see below), whose sum is σ = 7876240404480. Its totient is φ = 625098444480.

The previous prime is 2578531084127. The next prime is 2578531084147. The reversal of 2578531084140 is 414801358752.

It is a self number, because there is not a number n which added to its sum of digits gives 2578531084140.

It is not an unprimeable number, because it can be changed into a prime (2578531084147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1953431980 + ... + 1953433299.

It is an arithmetic number, because the mean of its divisors is an integer number (164088341760).

Almost surely, 2^{2578531084140} is an apocalyptic number.

2578531084140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2578531084140 is an abundant number, since it is smaller than the sum of its proper divisors (5297709320340).

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

2578531084140 is a wasteful number, since it uses less digits than its factorization.

2578531084140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906865302 (or 3906865300 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 48.

The spelling of 2578531084140 in words is "two trillion, five hundred seventy-eight billion, five hundred thirty-one million, eighty-four thousand, one hundred forty".