87928177911 has 32 divisors (see below), whose sum is σ = 141780492288. Its totient is φ = 47383200480.

The previous prime is 87928177907. The next prime is 87928177927. The reversal of 87928177911 is 11977182978.

It is not a de Polignac number, because 87928177911 - 2² = 87928177907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87928177901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1247721 + ... + 1316306.

It is an arithmetic number, because the mean of its divisors is an integer number (4430640384).

Almost surely, 2^87928177911 is an apocalyptic number.

87928177911 is a deficient number, since it is larger than the sum of its proper divisors (53852314377).

87928177911 is a wasteful number, since it uses less digits than its factorization.

87928177911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564131.

The product of its digits is 3556224, while the sum is 60.

The spelling of 87928177911 in words is "eighty-seven billion, nine hundred twenty-eight million, one hundred seventy-seven thousand, nine hundred eleven".