1138369499136 has 117 divisors (see below), whose sum is σ = 3288813386781. Its totient is φ = 379388215296.

The previous prime is 1138369499131. The next prime is 1138369499143. The reversal of 1138369499136 is 6319949638311.

The square root of 1138369499136 is 1066944.

It is a perfect power (a square), and thus also a powerful number.

1138369499136 is a `hidden beast` number, since 1 + 1 + 3 + 8 + 3 + 6 + 9 + 499 + 136 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1072964505600 + 65404993536 = 1035840^2 + 255744^2 .

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1138369499131) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 204850470 + ... + 204856026.

Almost surely, 2^{1138369499136} is an apocalyptic number.

1138369499136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1138369499136 is the 1066944-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1138369499136

1138369499136 is an abundant number, since it is smaller than the sum of its proper divisors (2150443887645).

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

1138369499136 is an frugal number, since it uses more digits than its factorization.

1138369499136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11144 (or 5562 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 63.

The spelling of 1138369499136 in words is "one trillion, one hundred thirty-eight billion, three hundred sixty-nine million, four hundred ninety-nine thousand, one hundred thirty-six".