197553428982 has 160 divisors (see below), whose sum is σ = 547071689472. Its totient is φ = 52101058464.

The previous prime is 197553428981. The next prime is 197553428993. The reversal of 197553428982 is 289824355791.

197553428982 is a `hidden beast` number, since 1 + 9 + 7 + 5 + 534 + 2 + 8 + 98 + 2 = 666.

It is a super-2 number, since 2×197553428982² (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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197553428981) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3554733 + ... + 3609879.

Almost surely, 2^197553428982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197553428982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273535844736).

197553428982 is an abundant number, since it is smaller than the sum of its proper divisors (349518260490).

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

197553428982 is an frugal number, since it uses more digits than its factorization.

197553428982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55196 (or 55172 counting only the distinct ones).

The product of its digits is 43545600, while the sum is 63.

The spelling of 197553428982 in words is "one hundred ninety-seven billion, five hundred fifty-three million, four hundred twenty-eight thousand, nine hundred eighty-two".