1922197636368 has 120 divisors (see below), whose sum is σ = 5432476882560. Its totient is φ = 634449749760.

The previous prime is 1922197636367. The next prime is 1922197636399. The reversal of 1922197636368 is 8636367912291.

1922197636368 is a `hidden beast` number, since 1 + 9 + 22 + 197 + 6 + 363 + 68 = 666.

It is not an unprimeable number, because it can be changed into a prime (1922197636367) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6209818 + ... + 6512006.

It is an arithmetic number, because the mean of its divisors is an integer number (45270640688).

Almost surely, 2^{1922197636368} is an apocalyptic number.

1922197636368 is a gapful number since it is divisible by the number (18) 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 1922197636368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2716238441280).

1922197636368 is an abundant number, since it is smaller than the sum of its proper divisors (3510279246192).

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

1922197636368 is a wasteful number, since it uses less digits than its factorization.

1922197636368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302637 (or 302628 counting only the distinct ones).

The product of its digits is 35271936, while the sum is 63.

The spelling of 1922197636368 in words is "one trillion, nine hundred twenty-two billion, one hundred ninety-seven million, six hundred thirty-six thousand, three hundred sixty-eight".