87678375526845 has 32 divisors (see below), whose sum is σ = 159189107351040. Its totient is φ = 45766868356800.

The previous prime is 87678375526603. The next prime is 87678375526867. The reversal of 87678375526845 is 54862557387678.

87678375526845 is a `hidden beast` number, since 8 + 7 + 6 + 7 + 8 + 3 + 7 + 5 + 526 + 84 + 5 = 666.

It is not a de Polignac number, because 87678375526845 - 2⁸ = 87678375526589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6909243106 + ... + 6909255795.

It is an arithmetic number, because the mean of its divisors is an integer number (4974659604720).

Almost surely, 2^{87678375526845} is an apocalyptic number.

It is an amenable number.

87678375526845 is a deficient number, since it is larger than the sum of its proper divisors (71510731824195).

87678375526845 is a wasteful number, since it uses less digits than its factorization.

87678375526845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13818498962 (or 13818498956 counting only the distinct ones).

The product of its digits is 18966528000, while the sum is 81.

The spelling of 87678375526845 in words is "eighty-seven trillion, six hundred seventy-eight billion, three hundred seventy-five million, five hundred twenty-six thousand, eight hundred forty-five".