2178871296 has 208 divisors, whose sum is σ = 6749908224. Its totient is φ = 612237312.

The previous prime is 2178871243. The next prime is 2178871313. The reversal of 2178871296 is 6921788712.

Its product of digits (677376) is a multiple of the sum of its prime divisors (432).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6278995 + ... + 6279341.

Almost surely, 2^2178871296 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 2178871296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3374954112).

2178871296 is an abundant number, since it is smaller than the sum of its proper divisors (4571036928).

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

2178871296 is an equidigital number, since it uses as much as digits as its factorization.

2178871296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 432 counting only the distinct ones).

The product of its digits is 677376, while the sum is 51.

The square root of 2178871296 is about 46678.3814629428. The cubic root of 2178871296 is about 1296.4144384052.

The spelling of 2178871296 in words is "two billion, one hundred seventy-eight million, eight hundred seventy-one thousand, two hundred ninety-six".