1929290920000 has 140 divisors (see below), whose sum is σ = 4862447078236. Its totient is φ = 759064320000.

The previous prime is 1929290919937. The next prime is 1929290920001. The reversal of 1929290920000 is 290929291.

It can be written as a sum of positive squares in 10 ways, for example, as 1541590425664 + 387700494336 = 1241608^2 + 622656^2 .

It is not an unprimeable number, because it can be changed into a prime (1929290920001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2044654 + ... + 2835346.

Almost surely, 2^{1929290920000} is an apocalyptic number.

1929290920000 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 1929290920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2431223539118).

1929290920000 is an abundant number, since it is smaller than the sum of its proper divisors (2933156158236).

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

1929290920000 is an frugal number, since it uses more digits than its factorization.

1929290920000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790786 (or 790761 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 1929290920000 in words is "one trillion, nine hundred twenty-nine billion, two hundred ninety million, nine hundred twenty thousand".