1838270990448 has 120 divisors (see below), whose sum is σ = 5359282797440. Its totient is φ = 587550205440.

The previous prime is 1838270990443. The next prime is 1838270990453. The reversal of 1838270990448 is 8440990728381.

1838270990448 is a `hidden beast` number, since 1 + 8 + 38 + 2 + 70 + 9 + 90 + 448 = 666.

It is an interprime number because it is at equal distance from previous prime (1838270990443) and next prime (1838270990453).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838270990443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1402411 + ... + 2375562.

Almost surely, 2^{1838270990448} is an apocalyptic number.

1838270990448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1838270990448 is an abundant number, since it is smaller than the sum of its proper divisors (3521011806992).

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

1838270990448 is a wasteful number, since it uses less digits than its factorization.

1838270990448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3778127 (or 3778118 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 1838270990448 in words is "one trillion, eight hundred thirty-eight billion, two hundred seventy million, nine hundred ninety thousand, four hundred forty-eight".