1838533549454 has 48 divisors (see below), whose sum is σ = 3291789261600. Its totient is φ = 767440477440.

The previous prime is 1838533549451. The next prime is 1838533549499. The reversal of 1838533549454 is 4549453358381.

It is a super-2 number, since 2×1838533549454² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838533549451) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2024834 + ... + 2788730.

It is an arithmetic number, because the mean of its divisors is an integer number (68578942950).

Almost surely, 2^{1838533549454} is an apocalyptic number.

1838533549454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1838533549454 is a deficient number, since it is larger than the sum of its proper divisors (1453255712146).

1838533549454 is a wasteful number, since it uses less digits than its factorization.

1838533549454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764553 (or 764546 counting only the distinct ones).

The product of its digits is 124416000, while the sum is 62.

The spelling of 1838533549454 in words is "one trillion, eight hundred thirty-eight billion, five hundred thirty-three million, five hundred forty-nine thousand, four hundred fifty-four".