2489263666 has 8 divisors (see below), whose sum is σ = 3766939164. Its totient is φ = 1233617280.

The previous prime is 2489263603. The next prime is 2489263681. The reversal of 2489263666 is 6663629842.

It can be written as a sum of positive squares in 2 ways, for example, as 2437495641 + 51768025 = 49371^2 + 7195^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5506995 + ... + 5507446.

Almost surely, 2^2489263666 is an apocalyptic number.

2489263666 is a deficient number, since it is larger than the sum of its proper divisors (1277675498).

2489263666 is a wasteful number, since it uses less digits than its factorization.

2489263666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11014556.

The product of its digits is 4478976, while the sum is 52.

The square root of 2489263666 is about 49892.5211429529. The cubic root of 2489263666 is about 1355.2631608077.

The spelling of 2489263666 in words is "two billion, four hundred eighty-nine million, two hundred sixty-three thousand, six hundred sixty-six".