86569839954 has 192 divisors, whose sum is σ = 215338556160. Its totient is φ = 24915548160.

The previous prime is 86569839947. The next prime is 86569839997. The reversal of 86569839954 is 45993896568.

86569839954 is a `hidden beast` number, since 8 + 6 + 569 + 8 + 3 + 9 + 9 + 54 = 666.

It is a super-2 number, since 2×86569839954² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 189430494 + ... + 189430950.

It is an arithmetic number, because the mean of its divisors is an integer number (1121554980).

Almost surely, 2^86569839954 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86569839954, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107669278080).

86569839954 is an abundant number, since it is smaller than the sum of its proper divisors (128768716206).

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

86569839954 is a wasteful number, since it uses less digits than its factorization.

86569839954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 945 (or 942 counting only the distinct ones).

The product of its digits is 503884800, while the sum is 72.

The spelling of 86569839954 in words is "eighty-six billion, five hundred sixty-nine million, eight hundred thirty-nine thousand, nine hundred fifty-four".