1997365474080 has 384 divisors, whose sum is σ = 7306440019200. Its totient is φ = 508959424512.

The previous prime is 1997365474073. The next prime is 1997365474133. The reversal of 1997365474080 is 804745637991.

1997365474080 is a `hidden beast` number, since 1 + 9 + 9 + 7 + 3 + 6 + 547 + 4 + 0 + 80 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1997365473999 and 1997365474017.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12069979 + ... + 12234341.

It is an arithmetic number, because the mean of its divisors is an integer number (19027187550).

Almost surely, 2^{1997365474080} is an apocalyptic number.

1997365474080 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 1997365474080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3653220009600).

1997365474080 is an abundant number, since it is smaller than the sum of its proper divisors (5309074545120).

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

1997365474080 is a wasteful number, since it uses less digits than its factorization.

1997365474080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164513 (or 164499 counting only the distinct ones).

The product of its (nonzero) digits is 45722880, while the sum is 63.

The spelling of 1997365474080 in words is "one trillion, nine hundred ninety-seven billion, three hundred sixty-five million, four hundred seventy-four thousand, eighty".