87646064678 has 16 divisors (see below), whose sum is σ = 132409220400. Its totient is φ = 43509914976.

The previous prime is 87646064677. The next prime is 87646064711.

87646064678 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 87646064678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87646064677) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632201 + ... + 758267.

It is an arithmetic number, because the mean of its divisors is an integer number (8275576275).

Almost surely, 2^87646064678 is an apocalyptic number.

87646064678 is a deficient number, since it is larger than the sum of its proper divisors (44763155722).

87646064678 is a wasteful number, since it uses less digits than its factorization.

87646064678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128551.

The product of its (nonzero) digits is 65028096, while the sum is 62.

The spelling of 87646064678 in words is "eighty-seven billion, six hundred forty-six million, sixty-four thousand, six hundred seventy-eight".