4897478920 has 16 divisors (see below), whose sum is σ = 11019327660. Its totient is φ = 1958991552.

The previous prime is 4897478909. The next prime is 4897478923. The reversal of 4897478920 is 298747984.

It can be written as a sum of positive squares in 2 ways, for example, as 4508048164 + 389430756 = 67142^2 + 19734^2 .

It is not an unprimeable number, because it can be changed into a prime (4897478923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61218447 + ... + 61218526.

Almost surely, 2^4897478920 is an apocalyptic number.

4897478920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4897478920 is an abundant number, since it is smaller than the sum of its proper divisors (6121848740).

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

4897478920 is a wasteful number, since it uses less digits than its factorization.

4897478920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122436984 (or 122436980 counting only the distinct ones).

The product of its (nonzero) digits is 8128512, while the sum is 58.

The square root of 4897478920 is about 69981.9899688484. The cubic root of 4897478920 is about 1698.2079061816.

The spelling of 4897478920 in words is "four billion, eight hundred ninety-seven million, four hundred seventy-eight thousand, nine hundred twenty".