87049082649 has 4 divisors (see below), whose sum is σ = 116065443536. Its totient is φ = 58032721764.

The previous prime is 87049082647. The next prime is 87049082663. The reversal of 87049082649 is 94628094078.

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 not a de Polignac number, because 87049082649 - 2¹ = 87049082647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87049082647) 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, 14508180439 + ... + 14508180444.

It is an arithmetic number, because the mean of its divisors is an integer number (29016360884).

Almost surely, 2^87049082649 is an apocalyptic number.

It is an amenable number.

87049082649 is a deficient number, since it is larger than the sum of its proper divisors (29016360887).

87049082649 is a wasteful number, since it uses less digits than its factorization.

87049082649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29016360886.

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 87049082649 in words is "eighty-seven billion, forty-nine million, eighty-two thousand, six hundred forty-nine".