6139782831920 has 40 divisors (see below), whose sum is σ = 14288449565520. Its totient is φ = 2453598383360.

The previous prime is 6139782831913. The next prime is 6139782831947. The reversal of 6139782831920 is 291382879316.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 6139782831920.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36082550 + ... + 36252309.

It is an arithmetic number, because the mean of its divisors is an integer number (357211239138).

Almost surely, 2^{6139782831920} is an apocalyptic number.

It is an amenable number.

6139782831920 is an abundant number, since it is smaller than the sum of its proper divisors (8148666733600).

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

6139782831920 is a wasteful number, since it uses less digits than its factorization.

6139782831920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72335933 (or 72335927 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 6139782831920 in words is "six trillion, one hundred thirty-nine billion, seven hundred eighty-two million, eight hundred thirty-one thousand, nine hundred twenty".