139084643808 has 480 divisors, whose sum is σ = 456897006720. Its totient is φ = 41150592000.

The previous prime is 139084643801. The next prime is 139084643813. The reversal of 139084643808 is 808346480931.

139084643808 is a `hidden beast` number, since 13 + 90 + 8 + 464 + 3 + 80 + 8 = 666.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139084643801) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 366977763 + ... + 366978141.

It is an arithmetic number, because the mean of its divisors is an integer number (951868764).

Almost surely, 2^139084643808 is an apocalyptic number.

139084643808 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139084643808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228448503360).

139084643808 is an abundant number, since it is smaller than the sum of its proper divisors (317812362912).

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

139084643808 is a wasteful number, since it uses less digits than its factorization.

139084643808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 54.

The spelling of 139084643808 in words is "one hundred thirty-nine billion, eighty-four million, six hundred forty-three thousand, eight hundred eight".