2878785992 has 8 divisors (see below), whose sum is σ = 5397723750. Its totient is φ = 1439392992.

The previous prime is 2878785983. The next prime is 2878786051. The reversal of 2878785992 is 2995878782.

2878785992 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2336175556 + 542610436 = 48334^2 + 23294^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 179924117 + ... + 179924132.

Almost surely, 2^2878785992 is an apocalyptic number.

It is an amenable number.

2878785992 is a deficient number, since it is larger than the sum of its proper divisors (2518937758).

2878785992 is a wasteful number, since it uses less digits than its factorization.

2878785992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359848255 (or 359848251 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 65.

The square root of 2878785992 is about 53654.3194160545. The cubic root of 2878785992 is about 1422.5573818050.

The spelling of 2878785992 in words is "two billion, eight hundred seventy-eight million, seven hundred eighty-five thousand, nine hundred ninety-two".