1138586780728 has 32 divisors (see below), whose sum is σ = 2261719575360. Its totient is φ = 535499781120.

The previous prime is 1138586780719. The next prime is 1138586780777. The reversal of 1138586780728 is 8270876858311.

It is a self number, because there is not a number n which added to its sum of digits gives 1138586780728.

It is a congruent number.

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, 2149488 + ... + 2626303.

It is an arithmetic number, because the mean of its divisors is an integer number (70678736730).

Almost surely, 2^{1138586780728} is an apocalyptic number.

It is an amenable number.

1138586780728 is a deficient number, since it is larger than the sum of its proper divisors (1123132794632).

1138586780728 is a wasteful number, since it uses less digits than its factorization.

1138586780728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4777567 (or 4777563 counting only the distinct ones).

The product of its (nonzero) digits is 36126720, while the sum is 64.

The spelling of 1138586780728 in words is "one trillion, one hundred thirty-eight billion, five hundred eighty-six million, seven hundred eighty thousand, seven hundred twenty-eight".