1919292000020 has 48 divisors (see below), whose sum is σ = 4048375394448. Its totient is φ = 764316272640.

The previous prime is 1919291999971. The next prime is 1919292000029. The reversal of 1919292000020 is 200002929191.

It can be written as a sum of positive squares in 8 ways, for example, as 32745797764 + 1886546202256 = 180958^2 + 1373516^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1919292000029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17668994 + ... + 17777286.

It is an arithmetic number, because the mean of its divisors is an integer number (84341154051).

Almost surely, 2^{1919292000020} is an apocalyptic number.

1919292000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1919292000020 is an abundant number, since it is smaller than the sum of its proper divisors (2129083394428).

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

1919292000020 is a wasteful number, since it uses less digits than its factorization.

1919292000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112220 (or 112218 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 1919292000020 in words is "one trillion, nine hundred nineteen billion, two hundred ninety-two million, twenty", and thus it is an aban number.