139784635320 has 384 divisors, whose sum is σ = 486491443200. Its totient is φ = 32042813440.

The previous prime is 139784635307. The next prime is 139784635321. The reversal of 139784635320 is 23536487931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139784635321) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 29720089 + ... + 29724791.

It is an arithmetic number, because the mean of its divisors is an integer number (1266904800).

It is a 1-persistent number, because it is pandigital, but 2⋅139784635320 = 279569270640 is not.

Almost surely, 2^139784635320 is an apocalyptic number.

139784635320 is a gapful number since it is divisible by the number (10) 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 139784635320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243245721600).

139784635320 is an abundant number, since it is smaller than the sum of its proper divisors (346706807880).

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

139784635320 is a wasteful number, since it uses less digits than its factorization.

139784635320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4851 (or 4836 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 139784635320 in words is "one hundred thirty-nine billion, seven hundred eighty-four million, six hundred thirty-five thousand, three hundred twenty".