1899054097920 has 1680 divisors, whose sum is σ = 8366989411440. Its totient is φ = 410847510528.

The previous prime is 1899054097909. The next prime is 1899054097931. The reversal of 1899054097920 is 297904509981.

1899054097920 is a `hidden beast` number, since 1 + 89 + 9 + 0 + 540 + 9 + 7 + 9 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1899054097909) and next prime (1899054097931).

It is a tau number, because it is divible by the number of its divisors (1680).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 1737468894 + ... + 1737469986.

Almost surely, 2^{1899054097920} is an apocalyptic number.

1899054097920 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 1899054097920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4183494705720).

1899054097920 is an abundant number, since it is smaller than the sum of its proper divisors (6467935313520).

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

1899054097920 is an equidigital number, since it uses as much as digits as its factorization.

1899054097920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 63.

The spelling of 1899054097920 in words is "one trillion, eight hundred ninety-nine billion, fifty-four million, ninety-seven thousand, nine hundred twenty".