2578008310783 has 4 divisors (see below), whose sum is σ = 2589072724368. Its totient is φ = 2566943897200.

The previous prime is 2578008310771. The next prime is 2578008310793. The reversal of 2578008310783 is 3870138008752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2578008310783 - 2²¹ = 2578006213631 is a prime.

It is a super-2 number, since 2×2578008310783² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2578008310783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2578008310723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5532206443 + ... + 5532206908.

It is an arithmetic number, because the mean of its divisors is an integer number (647268181092).

Almost surely, 2^{2578008310783} is an apocalyptic number.

2578008310783 is a deficient number, since it is larger than the sum of its proper divisors (11064413585).

2578008310783 is a wasteful number, since it uses less digits than its factorization.

2578008310783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11064413584.

The product of its (nonzero) digits is 2257920, while the sum is 52.

The spelling of 2578008310783 in words is "two trillion, five hundred seventy-eight billion, eight million, three hundred ten thousand, seven hundred eighty-three".