87578687578 has 16 divisors (see below), whose sum is σ = 133218720000. Its totient is φ = 43174012752.

The previous prime is 87578687527. The next prime is 87578687579.

87578687578 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (87578687579) 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, 278878 + ... + 502921.

It is an arithmetic number, because the mean of its divisors is an integer number (8326170000).

Almost surely, 2^87578687578 is an apocalyptic number.

87578687578 is a deficient number, since it is larger than the sum of its proper divisors (45640032422).

87578687578 is a wasteful number, since it uses less digits than its factorization.

87578687578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782589.

The product of its digits is 1475174400, while the sum is 76.

The spelling of 87578687578 in words is "eighty-seven billion, five hundred seventy-eight million, six hundred eighty-seven thousand, five hundred seventy-eight".