1138905036250 has 20 divisors (see below), whose sum is σ = 2134763602290. Its totient is φ = 455562014000.

The previous prime is 1138905036223. The next prime is 1138905036319. The reversal of 1138905036250 is 526305098311.

It can be written as a sum of positive squares in 5 ways, for example, as 13686894081 + 1125218142169 = 116991^2 + 1060763^2 .

It is a super-2 number, since 2×1138905036250² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1138905036197 and 1138905036206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 455560765 + ... + 455563264.

Almost surely, 2^{1138905036250} is an apocalyptic number.

1138905036250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138905036250 is a deficient number, since it is larger than the sum of its proper divisors (995858566040).

1138905036250 is an frugal number, since it uses more digits than its factorization.

1138905036250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911124051 (or 911124036 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 1138905036250 in words is "one trillion, one hundred thirty-eight billion, nine hundred five million, thirty-six thousand, two hundred fifty".