1778119896 has 192 divisors, whose sum is σ = 5506548480. Its totient is φ = 468449280.

The previous prime is 1778119867. The next prime is 1778119909. The reversal of 1778119896 is 6989118771.

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, 2572911 + ... + 2573601.

It is an arithmetic number, because the mean of its divisors is an integer number (28679940).

Almost surely, 2^1778119896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1778119896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2753274240).

1778119896 is an abundant number, since it is smaller than the sum of its proper divisors (3728428584).

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

1778119896 is a wasteful number, since it uses less digits than its factorization.

1778119896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794 (or 773 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 57.

The square root of 1778119896 is about 42167.7589634545. The cubic root of 1778119896 is about 1211.4914323288.

The spelling of 1778119896 in words is "one billion, seven hundred seventy-eight million, one hundred nineteen thousand, eight hundred ninety-six".