2779823196 has 108 divisors (see below), whose sum is σ = 7644709800. Its totient is φ = 849320640.

The previous prime is 2779823141. The next prime is 2779823201. The reversal of 2779823196 is 6913289772.

2779823196 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 655210 + ... + 659438.

It is an arithmetic number, because the mean of its divisors is an integer number (70784350).

Almost surely, 2^2779823196 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 2779823196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3822354900).

2779823196 is an abundant number, since it is smaller than the sum of its proper divisors (4864886604).

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

2779823196 is a wasteful number, since it uses less digits than its factorization.

2779823196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4320 (or 4284 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 54.

The square root of 2779823196 is about 52724.0286397009. The cubic root of 2779823196 is about 1406.0660586907.

The spelling of 2779823196 in words is "two billion, seven hundred seventy-nine million, eight hundred twenty-three thousand, one hundred ninety-six".