2578043575536 has 80 divisors (see below), whose sum is σ = 7824272131200. Its totient is φ = 721131068160.

The previous prime is 2578043575519. The next prime is 2578043575561. The reversal of 2578043575536 is 6355753408752.

It is a self number, because there is not a number n which added to its sum of digits gives 2578043575536.

It is a congruent number.

It is an unprimeable number.

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, 187787686 + ... + 187801413.

It is an arithmetic number, because the mean of its divisors is an integer number (97803401640).

Almost surely, 2^{2578043575536} is an apocalyptic number.

2578043575536 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

2578043575536 is an abundant number, since it is smaller than the sum of its proper divisors (5246228555664).

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

2578043575536 is a wasteful number, since it uses less digits than its factorization.

2578043575536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375589134 (or 375589128 counting only the distinct ones).

The product of its (nonzero) digits is 105840000, while the sum is 60.

The spelling of 2578043575536 in words is "two trillion, five hundred seventy-eight billion, forty-three million, five hundred seventy-five thousand, five hundred thirty-six".