1138465449792 has 168 divisors, whose sum is σ = 3573099747360. Its totient is φ = 343706526720.

The previous prime is 1138465449731. The next prime is 1138465449811. The reversal of 1138465449792 is 2979445648311.

1138465449792 is a `hidden beast` number, since 1 + 1 + 3 + 8 + 4 + 6 + 54 + 497 + 92 = 666.

It is a super-2 number, since 2×1138465449792² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1370403 + ... + 2038365.

Almost surely, 2^{1138465449792} is an apocalyptic number.

1138465449792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1138465449792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1786549873680).

1138465449792 is an abundant number, since it is smaller than the sum of its proper divisors (2434634297568).

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

1138465449792 is a wasteful number, since it uses less digits than its factorization.

1138465449792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668261 (or 668248 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 1138465449792 in words is "one trillion, one hundred thirty-eight billion, four hundred sixty-five million, four hundred forty-nine thousand, seven hundred ninety-two".