2087656208507 has 6 divisors (see below), whose sum is σ = 2203315832628. Its totient is φ = 1977779565612.

The previous prime is 2087656208501. The next prime is 2087656208513. The reversal of 2087656208507 is 7058026567802.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2087656208501) and next prime (2087656208513).

It is a de Polignac number, because none of the positive numbers 2^k-2087656208507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2087656208501) 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 5 ways as a sum of consecutive naturals, for example, 2891490233 + ... + 2891490954.

It is an arithmetic number, because the mean of its divisors is an integer number (367219305438).

Almost surely, 2^{2087656208507} is an apocalyptic number.

2087656208507 is a deficient number, since it is larger than the sum of its proper divisors (115659624121).

2087656208507 is an equidigital number, since it uses as much as digits as its factorization.

2087656208507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5782981225 (or 5782981206 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 56.

The spelling of 2087656208507 in words is "two trillion, eighty-seven billion, six hundred fifty-six million, two hundred eight thousand, five hundred seven".