197754896478304 has 144 divisors (see below), whose sum is σ = 453135830666400. Its totient is φ = 84596986327040.

The previous prime is 197754896478299. The next prime is 197754896478311. The reversal of 197754896478304 is 403874698457791.

It is a happy number.

It is a super-2 number, since 2×197754896478304² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1676412477 + ... + 1676530435.

It is an arithmetic number, because the mean of its divisors is an integer number (3146776601850).

Almost surely, 2^{197754896478304} 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 197754896478304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (226567915333200).

197754896478304 is an abundant number, since it is smaller than the sum of its proper divisors (255380934188096).

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

197754896478304 is a wasteful number, since it uses less digits than its factorization.

197754896478304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143477 (or 143458 counting only the distinct ones).

The product of its (nonzero) digits is 10241925120, while the sum is 82.

The spelling of 197754896478304 in words is "one hundred ninety-seven trillion, seven hundred fifty-four billion, eight hundred ninety-six million, four hundred seventy-eight thousand, three hundred four".