1538566675 has 12 divisors (see below), whose sum is σ = 1921552360. Its totient is φ = 1221995520.

The previous prime is 1538566661. The next prime is 1538566721. The reversal of 1538566675 is 5766658351.

It is not a de Polignac number, because 1538566675 - 2⁵ = 1538566643 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 217902 + ... + 224851.

Almost surely, 2^1538566675 is an apocalyptic number.

1538566675 is a deficient number, since it is larger than the sum of its proper divisors (382985685).

1538566675 is a wasteful number, since it uses less digits than its factorization.

1538566675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442902 (or 442897 counting only the distinct ones).

The product of its digits is 4536000, while the sum is 52.

The square root of 1538566675 is about 39224.5672378931. The cubic root of 1538566675 is about 1154.4419697733.

The spelling of 1538566675 in words is "one billion, five hundred thirty-eight million, five hundred sixty-six thousand, six hundred seventy-five".