1219078493472 has 384 divisors, whose sum is σ = 4047846566400. Its totient is φ = 319817809920.

The previous prime is 1219078493447. The next prime is 1219078493527. The reversal of 1219078493472 is 2743948709121.

It is a super-2 number, since 2×1219078493472² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22924258 + ... + 22977374.

It is an arithmetic number, because the mean of its divisors is an integer number (10541267100).

Almost surely, 2^{1219078493472} is an apocalyptic number.

1219078493472 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 1219078493472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2023923283200).

1219078493472 is an abundant number, since it is smaller than the sum of its proper divisors (2828768072928).

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

1219078493472 is a wasteful number, since it uses less digits than its factorization.

1219078493472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53209 (or 53187 counting only the distinct ones).

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 1219078493472 in words is "one trillion, two hundred nineteen billion, seventy-eight million, four hundred ninety-three thousand, four hundred seventy-two".