197788948198380 has 1536 divisors, whose sum is σ = 820817141760000. Its totient is φ = 38299226112000.

The previous prime is 197788948198379. The next prime is 197788948198397. The reversal of 197788948198380 is 83891849887791.

197788948198380 is a `hidden beast` number, since 1 + 9 + 7 + 7 + 8 + 8 + 9 + 481 + 98 + 38 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (90).

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 25858140796 + ... + 25858148444.

It is an arithmetic number, because the mean of its divisors is an integer number (534386160000).

Almost surely, 2^{197788948198380} is an apocalyptic number.

197788948198380 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 197788948198380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410408570880000).

197788948198380 is an abundant number, since it is smaller than the sum of its proper divisors (623028193561620).

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

197788948198380 is a wasteful number, since it uses less digits than its factorization.

197788948198380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8236 (or 8228 counting only the distinct ones).

The product of its (nonzero) digits is 14046068736, while the sum is 90.

The spelling of 197788948198380 in words is "one hundred ninety-seven trillion, seven hundred eighty-eight billion, nine hundred forty-eight million, one hundred ninety-eight thousand, three hundred eighty".