1138443963040 has 48 divisors (see below), whose sum is σ = 2690383043880. Its totient is φ = 455240581120.

The previous prime is 1138443963001. The next prime is 1138443963101. The reversal of 1138443963040 is 403693448311.

It can be written as a sum of positive squares in 4 ways, for example, as 569427196816 + 569016766224 = 754604^2 + 754332^2 .

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, 536041 + ... + 1601320.

Almost surely, 2^{1138443963040} is an apocalyptic number.

1138443963040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1138443963040 is an abundant number, since it is smaller than the sum of its proper divisors (1551939080840).

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

1138443963040 is a wasteful number, since it uses less digits than its factorization.

1138443963040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140705 (or 2140697 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 46.

The spelling of 1138443963040 in words is "one trillion, one hundred thirty-eight billion, four hundred forty-three million, nine hundred sixty-three thousand, forty".