86940009471 has 64 divisors (see below), whose sum is σ = 136957132800. Its totient is φ = 48038006016.

The previous prime is 86940009467. The next prime is 86940009479. The reversal of 86940009471 is 17490004968.

It is not a de Polignac number, because 86940009471 - 2² = 86940009467 is a prime.

It is a super-3 number, since 3×86940009471³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86940009471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86940009479) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15795906 + ... + 15801408.

It is an arithmetic number, because the mean of its divisors is an integer number (2139955200).

Almost surely, 2^86940009471 is an apocalyptic number.

86940009471 is a deficient number, since it is larger than the sum of its proper divisors (50017123329).

86940009471 is a wasteful number, since it uses less digits than its factorization.

86940009471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5788.

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 86940009471 in words is "eighty-six billion, nine hundred forty million, nine thousand, four hundred seventy-one".