2087513439549 has 4 divisors (see below), whose sum is σ = 2783351252736. Its totient is φ = 1391675626364.

The previous prime is 2087513439533. The next prime is 2087513439577. The reversal of 2087513439549 is 9459343157802.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2087513439549 - 2⁴ = 2087513439533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2087513439492 and 2087513439501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2087513419549) 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, 347918906589 + ... + 347918906594.

It is an arithmetic number, because the mean of its divisors is an integer number (695837813184).

Almost surely, 2^{2087513439549} is an apocalyptic number.

It is an amenable number.

2087513439549 is a deficient number, since it is larger than the sum of its proper divisors (695837813187).

2087513439549 is an equidigital number, since it uses as much as digits as its factorization.

2087513439549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695837813186.

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 2087513439549 in words is "two trillion, eighty-seven billion, five hundred thirteen million, four hundred thirty-nine thousand, five hundred forty-nine".