2878697448 has 512 divisors, whose sum is σ = 10119168000. Its totient is φ = 752716800.

The previous prime is 2878697413. The next prime is 2878697449. The reversal of 2878697448 is 8447968782.

2878697448 is a `hidden beast` number, since 28 + 7 + 86 + 97 + 448 = 666.

It is not an unprimeable number, because it can be changed into a prime (2878697449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 92861193 + ... + 92861223.

It is an arithmetic number, because the mean of its divisors is an integer number (19764000).

Almost surely, 2^2878697448 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 2878697448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5059584000).

2878697448 is an abundant number, since it is smaller than the sum of its proper divisors (7240470552).

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

2878697448 is a wasteful number, since it uses less digits than its factorization.

2878697448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115 (or 83 counting only the distinct ones).

The product of its digits is 43352064, while the sum is 63.

The square root of 2878697448 is about 53653.4942757692. The cubic root of 2878697448 is about 1422.5427969288.

The spelling of 2878697448 in words is "two billion, eight hundred seventy-eight million, six hundred ninety-seven thousand, four hundred forty-eight".