1139686280856 has 96 divisors (see below), whose sum is σ = 3198336261120. Its totient is φ = 366242673600.

The previous prime is 1139686280827. The next prime is 1139686280861. The reversal of 1139686280856 is 6580826869311.

1139686280856 is a `hidden beast` number, since 11 + 396 + 86 + 2 + 80 + 85 + 6 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1139686280793 and 1139686280802.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383730 + ... + 1557761.

It is an arithmetic number, because the mean of its divisors is an integer number (33316002720).

Almost surely, 2^{1139686280856} is an apocalyptic number.

It is an amenable number.

1139686280856 is an abundant number, since it is smaller than the sum of its proper divisors (2058649980264).

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

1139686280856 is a wasteful number, since it uses less digits than its factorization.

1139686280856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941797 (or 1941790 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 1139686280856 in words is "one trillion, one hundred thirty-nine billion, six hundred eighty-six million, two hundred eighty thousand, eight hundred fifty-six".