86424720128 has 36 divisors (see below), whose sum is σ = 173828795448. Its totient is φ = 42882478080.

The previous prime is 86424720091. The next prime is 86424720149. The reversal of 86424720128 is 82102742468.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255001 + ... + 1322072.

Almost surely, 2^86424720128 is an apocalyptic number.

It is an amenable number.

86424720128 is an abundant number, since it is smaller than the sum of its proper divisors (87404075320).

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

86424720128 is a wasteful number, since it uses less digits than its factorization.

86424720128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2577220 (or 2577206 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 86424720128 in words is "eighty-six billion, four hundred twenty-four million, seven hundred twenty thousand, one hundred twenty-eight".