87113279666140 has 48 divisors (see below), whose sum is σ = 225154322834112. Its totient is φ = 27569917080576.

The previous prime is 87113279666117. The next prime is 87113279666221. The reversal of 87113279666140 is 4166697231178.

It is a happy number.

It is a super-2 number, since 2×87113279666140² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23932217869 + ... + 23932221508.

It is an arithmetic number, because the mean of its divisors is an integer number (4690715059044).

Almost surely, 2^{87113279666140} is an apocalyptic number.

It is an amenable number.

87113279666140 is an abundant number, since it is smaller than the sum of its proper divisors (138041043167972).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87113279666140 is a wasteful number, since it uses less digits than its factorization.

87113279666140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47864439406 (or 47864439404 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 61.

The spelling of 87113279666140 in words is "eighty-seven trillion, one hundred thirteen billion, two hundred seventy-nine million, six hundred sixty-six thousand, one hundred forty".