537198111800 has 48 divisors (see below), whose sum is σ = 1427412129360. Its totient is φ = 184182209280.

The previous prime is 537198111797. The next prime is 537198111829. The reversal of 537198111800 is 8111891735.

It is a super-2 number, since 2×537198111800² (a number of 24 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 11 ways as a sum of consecutive naturals, for example, 191855069 + ... + 191857868.

It is an arithmetic number, because the mean of its divisors is an integer number (29737752695).

Almost surely, 2^537198111800 is an apocalyptic number.

537198111800 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

537198111800 is an abundant number, since it is smaller than the sum of its proper divisors (890214017560).

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

537198111800 is a wasteful number, since it uses less digits than its factorization.

537198111800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383712960 (or 383712951 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 44.

Adding to 537198111800 its sum of digits (44), we get a square (537198111844 = 732938²).

The spelling of 537198111800 in words is "five hundred thirty-seven billion, one hundred ninety-eight million, one hundred eleven thousand, eight hundred".