2478038566 has 16 divisors (see below), whose sum is σ = 3731918400. Its totient is φ = 1234075968.

The previous prime is 2478038557. The next prime is 2478038587. The reversal of 2478038566 is 6658308742.

It is a super-2 number, since 2×2478038566² = 12281350269166672712, which contains 22 as substring.

It is a congruent 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, 630355 + ... + 634273.

It is an arithmetic number, because the mean of its divisors is an integer number (233244900).

Almost surely, 2^2478038566 is an apocalyptic number.

2478038566 is a deficient number, since it is larger than the sum of its proper divisors (1253879834).

2478038566 is a wasteful number, since it uses less digits than its factorization.

2478038566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5103.

The product of its (nonzero) digits is 1935360, while the sum is 49.

The square root of 2478038566 is about 49779.9012252937. The cubic root of 2478038566 is about 1353.2229471603. Note that the first 3 decimals are identical.

The spelling of 2478038566 in words is "two billion, four hundred seventy-eight million, thirty-eight thousand, five hundred sixty-six".