87755281407 has 12 divisors (see below), whose sum is σ = 126774104184. Its totient is φ = 58495916880.

The previous prime is 87755281403. The next prime is 87755281417. The reversal of 87755281407 is 70418255778.

87755281407 is a `hidden beast` number, since 8 + 7 + 7 + 552 + 81 + 4 + 0 + 7 = 666.

It is not a de Polignac number, because 87755281407 - 2² = 87755281403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87755281403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 560133 + ... + 699470.

It is an arithmetic number, because the mean of its divisors is an integer number (10564508682).

Almost surely, 2^87755281407 is an apocalyptic number.

87755281407 is a deficient number, since it is larger than the sum of its proper divisors (39018822777).

87755281407 is a wasteful number, since it uses less digits than its factorization.

87755281407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267350 (or 1267347 counting only the distinct ones).

The product of its (nonzero) digits is 4390400, while the sum is 54.

The spelling of 87755281407 in words is "eighty-seven billion, seven hundred fifty-five million, two hundred eighty-one thousand, four hundred seven".