198875397740544 has 192 divisors, whose sum is σ = 673276087411200. Its totient is φ = 56821542100992.

The previous prime is 198875397740527. The next prime is 198875397740561. The reversal of 198875397740544 is 445047793578891.

198875397740544 is a `hidden beast` number, since 1 + 9 + 8 + 8 + 7 + 539 + 7 + 74 + 0 + 5 + 4 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (198875397740527) and next prime (198875397740561).

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256510092 + ... + 257284235.

It is an arithmetic number, because the mean of its divisors is an integer number (3506646288600).

Almost surely, 2^{198875397740544} is an apocalyptic number.

198875397740544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

198875397740544 is an abundant number, since it is smaller than the sum of its proper divisors (474400689670656).

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

198875397740544 is an equidigital number, since it uses as much as digits as its factorization.

198875397740544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513794365 (or 513794339 counting only the distinct ones).

The product of its (nonzero) digits is 8534937600, while the sum is 81.

The spelling of 198875397740544 in words is "one hundred ninety-eight trillion, eight hundred seventy-five billion, three hundred ninety-seven million, seven hundred forty thousand, five hundred forty-four".