1389257675 has 48 divisors (see below), whose sum is σ = 1966644960. Its totient is φ = 965053440.

The previous prime is 1389257659. The next prime is 1389257687. The reversal of 1389257675 is 5767529831.

It is not a de Polignac number, because 1389257675 - 2⁴ = 1389257659 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 968759 + ... + 970191.

It is an arithmetic number, because the mean of its divisors is an integer number (40971770).

Almost surely, 2^1389257675 is an apocalyptic number.

1389257675 is a deficient number, since it is larger than the sum of its proper divisors (577387285).

1389257675 is a wasteful number, since it uses less digits than its factorization.

1389257675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632 (or 1627 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 53.

The square root of 1389257675 is about 37272.7470814803. The cubic root of 1389257675 is about 1115.8203257610.

The spelling of 1389257675 in words is "one billion, three hundred eighty-nine million, two hundred fifty-seven thousand, six hundred seventy-five".