38198942544 has 120 divisors (see below), whose sum is σ = 114911374368. Its totient is φ = 10902608640.

The previous prime is 38198942539. The next prime is 38198942567. The reversal of 38198942544 is 44524989183.

It is a super-2 number, since 2×38198942544² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 2393439 + ... + 2409345.

Almost surely, 2^38198942544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38198942544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57455687184).

38198942544 is an abundant number, since it is smaller than the sum of its proper divisors (76712431824).

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

38198942544 is a wasteful number, since it uses less digits than its factorization.

38198942544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16953 (or 16940 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 57.

The spelling of 38198942544 in words is "thirty-eight billion, one hundred ninety-eight million, nine hundred forty-two thousand, five hundred forty-four".