1997194525119 has 32 divisors (see below), whose sum is σ = 2992931654400. Its totient is φ = 1316149408800.

The previous prime is 1997194525097. The next prime is 1997194525171. The reversal of 1997194525119 is 9115254917991.

1997194525119 is a `hidden beast` number, since 1 + 9 + 9 + 7 + 1 + 94 + 525 + 1 + 19 = 666.

It is not a de Polignac number, because 1997194525119 - 2⁷ = 1997194524991 is a prime.

It is a super-2 number, since 2×1997194525119² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1997194525019) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1096432 + ... + 2279594.

It is an arithmetic number, because the mean of its divisors is an integer number (93529114200).

Almost surely, 2^{1997194525119} is an apocalyptic number.

1997194525119 is a deficient number, since it is larger than the sum of its proper divisors (995737129281).

1997194525119 is a wasteful number, since it uses less digits than its factorization.

1997194525119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183892 (or 1183886 counting only the distinct ones).

The product of its digits is 9185400, while the sum is 63.

The spelling of 1997194525119 in words is "one trillion, nine hundred ninety-seven billion, one hundred ninety-four million, five hundred twenty-five thousand, one hundred nineteen".