86617229478 has 32 divisors (see below), whose sum is σ = 187360913376. Its totient is φ = 26537065728.

The previous prime is 86617229453. The next prime is 86617229521. The reversal of 86617229478 is 87492271668.

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 15 ways as a sum of consecutive naturals, for example, 2364825 + ... + 2401172.

It is an arithmetic number, because the mean of its divisors is an integer number (5855028543).

Almost surely, 2^86617229478 is an apocalyptic number.

86617229478 is an abundant number, since it is smaller than the sum of its proper divisors (100743683898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86617229478 is a wasteful number, since it uses less digits than its factorization.

86617229478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4766248.

The product of its digits is 16257024, while the sum is 60.

The spelling of 86617229478 in words is "eighty-six billion, six hundred seventeen million, two hundred twenty-nine thousand, four hundred seventy-eight".