198572781960 has 256 divisors, whose sum is σ = 800966361600. Its totient is φ = 42718150656.

The previous prime is 198572781949. The next prime is 198572781971. The reversal of 198572781960 is 69187275891.

198572781960 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (198572781949) and next prime (198572781971).

It is a super-2 number, since 2×198572781960² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 644017 + ... + 901056.

It is an arithmetic number, because the mean of its divisors is an integer number (3128774850).

Almost surely, 2^198572781960 is an apocalyptic number.

198572781960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

198572781960 is an abundant number, since it is smaller than the sum of its proper divisors (602393579640).

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

198572781960 is a wasteful number, since it uses less digits than its factorization.

198572781960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1545117 (or 1545107 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 63.

The spelling of 198572781960 in words is "one hundred ninety-eight billion, five hundred seventy-two million, seven hundred eighty-one thousand, nine hundred sixty".