1919795653272 has 192 divisors, whose sum is σ = 5878392307200. Its totient is φ = 519514248960.

The previous prime is 1919795653249. The next prime is 1919795653283. The reversal of 1919795653272 is 2723565979191.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 119152497 + ... + 119168607.

It is an arithmetic number, because the mean of its divisors is an integer number (30616626600).

Almost surely, 2^{1919795653272} is an apocalyptic number.

1919795653272 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 1919795653272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2939196153600).

1919795653272 is an abundant number, since it is smaller than the sum of its proper divisors (3958596653928).

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

1919795653272 is a wasteful number, since it uses less digits than its factorization.

1919795653272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21486 (or 21475 counting only the distinct ones).

The product of its digits is 64297800, while the sum is 66.

The spelling of 1919795653272 in words is "one trillion, nine hundred nineteen billion, seven hundred ninety-five million, six hundred fifty-three thousand, two hundred seventy-two".