8686139377392 has 240 divisors, whose sum is σ = 25196844441600. Its totient is φ = 2790442137600.

The previous prime is 8686139377379. The next prime is 8686139377393. The reversal of 8686139377392 is 2937739316868.

8686139377392 is a `hidden beast` number, since 8 + 6 + 86 + 1 + 3 + 93 + 77 + 392 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 8686139377392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8686139377393) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1152462648 + ... + 1152470184.

It is an arithmetic number, because the mean of its divisors is an integer number (104986851840).

Almost surely, 2^{8686139377392} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8686139377392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12598422220800).

8686139377392 is an abundant number, since it is smaller than the sum of its proper divisors (16510705064208).

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

8686139377392 is a wasteful number, since it uses less digits than its factorization.

8686139377392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612 (or 8603 counting only the distinct ones).

The product of its digits is 493807104, while the sum is 72.

The spelling of 8686139377392 in words is "eight trillion, six hundred eighty-six billion, one hundred thirty-nine million, three hundred seventy-seven thousand, three hundred ninety-two".