87631863178 has 8 divisors (see below), whose sum is σ = 131628605472. Its totient is φ = 43755661356.

The previous prime is 87631863167. The next prime is 87631863227. The reversal of 87631863178 is 87136813678.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30133300 + ... + 30136207.

It is an arithmetic number, because the mean of its divisors is an integer number (16453575684).

Almost surely, 2^87631863178 is an apocalyptic number.

87631863178 is a deficient number, since it is larger than the sum of its proper divisors (43996742294).

87631863178 is a wasteful number, since it uses less digits than its factorization.

87631863178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60270236.

The product of its digits is 8128512, while the sum is 58.

The spelling of 87631863178 in words is "eighty-seven billion, six hundred thirty-one million, eight hundred sixty-three thousand, one hundred seventy-eight".