197477406720 has 576 divisors, whose sum is σ = 752846814720. Its totient is φ = 47475916800.

The previous prime is 197477406677. The next prime is 197477406739. The reversal of 197477406720 is 27604774791.

197477406720 is a `hidden beast` number, since 1 + 97 + 477 + 4 + 0 + 67 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (576).

It is a super-3 number, since 3×197477406720³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132801817 + ... + 132803303.

It is an arithmetic number, because the mean of its divisors is an integer number (1307025720).

Almost surely, 2^197477406720 is an apocalyptic number.

197477406720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197477406720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376423407360).

197477406720 is an abundant number, since it is smaller than the sum of its proper divisors (555369408000).

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

197477406720 is a wasteful number, since it uses less digits than its factorization.

197477406720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1662 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 4148928, while the sum is 54.

The spelling of 197477406720 in words is "one hundred ninety-seven billion, four hundred seventy-seven million, four hundred six thousand, seven hundred twenty".