1997342906130 has 512 divisors, whose sum is σ = 6480395228160. Its totient is φ = 431308800000.

The previous prime is 1997342906123. The next prime is 1997342906173. The reversal of 1997342906130 is 316092437991.

It is a happy number.

1997342906130 is a `hidden beast` number, since 1 + 99 + 73 + 429 + 0 + 61 + 3 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 124818130 + ... + 124834130.

It is an arithmetic number, because the mean of its divisors is an integer number (12657021930).

Almost surely, 2^{1997342906130} is an apocalyptic number.

1997342906130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1997342906130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3240197614080).

1997342906130 is an abundant number, since it is smaller than the sum of its proper divisors (4483052322030).

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

1997342906130 is a wasteful number, since it uses less digits than its factorization.

1997342906130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16155 (or 16149 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 1997342906130 in words is "one trillion, nine hundred ninety-seven billion, three hundred forty-two million, nine hundred six thousand, one hundred thirty".