1922772819240 has 960 divisors, whose sum is σ = 8031042898560. Its totient is φ = 403996170240.

The previous prime is 1922772819239. The next prime is 1922772819251. The reversal of 1922772819240 is 429182772291.

1922772819240 is a `hidden beast` number, since 1 + 9 + 2 + 277 + 281 + 92 + 4 + 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 pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 1061717935 + ... + 1061719745.

It is an arithmetic number, because the mean of its divisors is an integer number (8365669686).

Almost surely, 2^{1922772819240} is an apocalyptic number.

1922772819240 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 1922772819240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4015521449280).

1922772819240 is an abundant number, since it is smaller than the sum of its proper divisors (6108270079320).

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

1922772819240 is a wasteful number, since it uses less digits than its factorization.

1922772819240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2144 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 1922772819240 in words is "one trillion, nine hundred twenty-two billion, seven hundred seventy-two million, eight hundred nineteen thousand, two hundred forty".