8671537478 has 16 divisors (see below), whose sum is σ = 13170217680. Its totient is φ = 4281793536.

The previous prime is 8671537447. The next prime is 8671537481. The reversal of 8671537478 is 8747351768.

It is a happy number.

It is a congruent number.

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, 29108 + ... + 134871.

It is an arithmetic number, because the mean of its divisors is an integer number (823138605).

Almost surely, 2^8671537478 is an apocalyptic number.

8671537478 is a deficient number, since it is larger than the sum of its proper divisors (4498680202).

8671537478 is a wasteful number, since it uses less digits than its factorization.

8671537478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164311.

The product of its digits is 7902720, while the sum is 56.

The square root of 8671537478 is about 93121.0904038392. The cubic root of 8671537478 is about 2054.4647862741.

The spelling of 8671537478 in words is "eight billion, six hundred seventy-one million, five hundred thirty-seven thousand, four hundred seventy-eight".