1909299796992 has 1760 divisors, whose sum is σ = 7170669428736. Its totient is φ = 494478950400.

The previous prime is 1909299796949. The next prime is 1909299796993. The reversal of 1909299796992 is 2996979929091.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909299796993) by changing a digit.

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 159 ways as a sum of consecutive naturals, for example, 31299996642 + ... + 31299996702.

Almost surely, 2^{1909299796992} is an apocalyptic number.

1909299796992 is a gapful number since it is divisible by the number (12) 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 1909299796992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3585334714368).

1909299796992 is an abundant number, since it is smaller than the sum of its proper divisors (5261369631744).

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

1909299796992 is a wasteful number, since it uses less digits than its factorization.

1909299796992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 803538792, while the sum is 81.

The spelling of 1909299796992 in words is "one trillion, nine hundred nine billion, two hundred ninety-nine million, seven hundred ninety-six thousand, nine hundred ninety-two".