4978267820 has 24 divisors (see below), whose sum is σ = 10461455424. Its totient is φ = 1989956096.

The previous prime is 4978267807. The next prime is 4978267831. The reversal of 4978267820 is 287628794.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53957 + ... + 113436.

It is an arithmetic number, because the mean of its divisors is an integer number (435893976).

Almost surely, 2^4978267820 is an apocalyptic number.

It is an amenable number.

4978267820 is an abundant number, since it is smaller than the sum of its proper divisors (5483187604).

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

4978267820 is a wasteful number, since it uses less digits than its factorization.

4978267820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168889 (or 168887 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 4978267820 is about 70556.8410574056. The cubic root of 4978267820 is about 1707.4949149775.

The spelling of 4978267820 in words is "four billion, nine hundred seventy-eight million, two hundred sixty-seven thousand, eight hundred twenty".