87523976578 has 16 divisors (see below), whose sum is σ = 137000367360. Its totient is φ = 41857362976.

The previous prime is 87523976567. The next prime is 87523976581. The reversal of 87523976578 is 87567932578.

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, 1779351 + ... + 1827877.

It is an arithmetic number, because the mean of its divisors is an integer number (8562522960).

Almost surely, 2^87523976578 is an apocalyptic number.

87523976578 is a deficient number, since it is larger than the sum of its proper divisors (49476390782).

87523976578 is a wasteful number, since it uses less digits than its factorization.

87523976578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87761.

The product of its digits is 177811200, while the sum is 67.

The spelling of 87523976578 in words is "eighty-seven billion, five hundred twenty-three million, nine hundred seventy-six thousand, five hundred seventy-eight".