1819650196896 has 288 divisors, whose sum is σ = 5803540928640. Its totient is φ = 496821878784.

The previous prime is 1819650196891. The next prime is 1819650196927. The reversal of 1819650196896 is 6986910569181.

It is a super-2 number, since 2×1819650196896² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a self number, because there is not a number n which added to its sum of digits gives 1819650196896.

It is not an unprimeable number, because it can be changed into a prime (1819650196891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 122141320 + ... + 122156216.

It is an arithmetic number, because the mean of its divisors is an integer number (20151183780).

Almost surely, 2^{1819650196896} is an apocalyptic number.

1819650196896 is a gapful number since it is divisible by the number (16) 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 1819650196896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2901770464320).

1819650196896 is an abundant number, since it is smaller than the sum of its proper divisors (3983890731744).

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

1819650196896 is a wasteful number, since it uses less digits than its factorization.

1819650196896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16076 (or 16061 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 69.

The spelling of 1819650196896 in words is "one trillion, eight hundred nineteen billion, six hundred fifty million, one hundred ninety-six thousand, eight hundred ninety-six".