2478662664 has 16 divisors (see below), whose sum is σ = 6196656720. Its totient is φ = 826220880.

The previous prime is 2478662663. The next prime is 2478662677. The reversal of 2478662664 is 4662668742.

It is a super-2 number, since 2×2478662664² = 12287537203815153792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2478662663) 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, 51638782 + ... + 51638829.

It is an arithmetic number, because the mean of its divisors is an integer number (387291045).

Almost surely, 2^2478662664 is an apocalyptic number.

2478662664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2478662664 is an abundant number, since it is smaller than the sum of its proper divisors (3717994056).

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

2478662664 is a wasteful number, since it uses less digits than its factorization.

2478662664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103277620 (or 103277616 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 51.

The square root of 2478662664 is about 49786.1694047654. The cubic root of 2478662664 is about 1353.3365414167.

The spelling of 2478662664 in words is "two billion, four hundred seventy-eight million, six hundred sixty-two thousand, six hundred sixty-four".