2780561725589 has 8 divisors (see below), whose sum is σ = 2795042335680. Its totient is φ = 2766081874176.

The previous prime is 2780561725567. The next prime is 2780561725657. The reversal of 2780561725589 is 9855271650872.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2780561725589 - 2¹⁶ = 2780561660053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2780561725289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8099774 + ... + 8436080.

It is an arithmetic number, because the mean of its divisors is an integer number (349380291960).

Almost surely, 2^{2780561725589} is an apocalyptic number.

It is an amenable number.

2780561725589 is a deficient number, since it is larger than the sum of its proper divisors (14480610091).

2780561725589 is a wasteful number, since it uses less digits than its factorization.

2780561725589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379339.

The product of its (nonzero) digits is 84672000, while the sum is 65.

The spelling of 2780561725589 in words is "two trillion, seven hundred eighty billion, five hundred sixty-one million, seven hundred twenty-five thousand, five hundred eighty-nine".