87187556688378 has 16 divisors (see below), whose sum is σ = 174376397376480. Its totient is φ = 29062304896176.

The previous prime is 87187556688317. The next prime is 87187556688409. The reversal of 87187556688378 is 87388665578178.

It is a junction number, because it is equal to n+sod(n) for n = 87187556688294 and 87187556688303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52616125 + ... + 54247872.

It is an arithmetic number, because the mean of its divisors is an integer number (10898524836030).

Almost surely, 2^{87187556688378} is an apocalyptic number.

87187556688378 is an abundant number, since it is smaller than the sum of its proper divisors (87188840688102).

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

87187556688378 is a wasteful number, since it uses less digits than its factorization.

87187556688378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106999981.

The product of its digits is 30346444800, while the sum is 87.

The spelling of 87187556688378 in words is "eighty-seven trillion, one hundred eighty-seven billion, five hundred fifty-six million, six hundred eighty-eight thousand, three hundred seventy-eight".