83786755392 has 168 divisors, whose sum is σ = 241979013120. Its totient is φ = 27718087680.

The previous prime is 83786755309. The next prime is 83786755399. The reversal of 83786755392 is 29355768738.

83786755392 is a `hidden beast` number, since 8 + 3 + 78 + 6 + 7 + 553 + 9 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83786755399) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 80641209 + ... + 80642247.

Almost surely, 2^83786755392 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 83786755392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120989506560).

83786755392 is an abundant number, since it is smaller than the sum of its proper divisors (158192257728).

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

83786755392 is a wasteful number, since it uses less digits than its factorization.

83786755392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981 (or 1968 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 63.

The spelling of 83786755392 in words is "eighty-three billion, seven hundred eighty-six million, seven hundred fifty-five thousand, three hundred ninety-two".