87748509611 has 4 divisors (see below), whose sum is σ = 100284010992. Its totient is φ = 75213008232.

The previous prime is 87748509587. The next prime is 87748509613. The reversal of 87748509611 is 11690584778.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 87748509611 - 2¹⁰ = 87748508587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87748509613) 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, 6267750680 + ... + 6267750693.

It is an arithmetic number, because the mean of its divisors is an integer number (25071002748).

Almost surely, 2^87748509611 is an apocalyptic number.

87748509611 is a deficient number, since it is larger than the sum of its proper divisors (12535501381).

87748509611 is a wasteful number, since it uses less digits than its factorization.

87748509611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12535501380.

The product of its (nonzero) digits is 3386880, while the sum is 56.

The spelling of 87748509611 in words is "eighty-seven billion, seven hundred forty-eight million, five hundred nine thousand, six hundred eleven".