2687557961089 has 8 divisors (see below), whose sum is σ = 2694087184320. Its totient is φ = 2681036453616.

The previous prime is 2687557961083. The next prime is 2687557961183. The reversal of 2687557961089 is 9801697557862.

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 2687557961089 - 2¹³ = 2687557952897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2687557961083) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1231147 + ... + 2625040.

It is an arithmetic number, because the mean of its divisors is an integer number (336760898040).

Almost surely, 2^{2687557961089} is an apocalyptic number.

It is an amenable number.

2687557961089 is a deficient number, since it is larger than the sum of its proper divisors (6529223231).

2687557961089 is an equidigital number, since it uses as much as digits as its factorization.

2687557961089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3857879.

The product of its (nonzero) digits is 457228800, while the sum is 73.

The spelling of 2687557961089 in words is "two trillion, six hundred eighty-seven billion, five hundred fifty-seven million, nine hundred sixty-one thousand, eighty-nine".