5385444789 has 4 divisors (see below), whose sum is σ = 7180593056. Its totient is φ = 3590296524.

The previous prime is 5385444769. The next prime is 5385444809. The reversal of 5385444789 is 9874445835.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (5385444769) and next prime (5385444809).

It is not a de Polignac number, because 5385444789 - 2⁷ = 5385444661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5385444769) 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, 897574129 + ... + 897574134.

It is an arithmetic number, because the mean of its divisors is an integer number (1795148264).

Almost surely, 2^5385444789 is an apocalyptic number.

It is an amenable number.

5385444789 is a deficient number, since it is larger than the sum of its proper divisors (1795148267).

5385444789 is a wasteful number, since it uses less digits than its factorization.

5385444789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1795148266.

The product of its digits is 19353600, while the sum is 57.

The square root of 5385444789 is about 73385.5897911845. The cubic root of 5385444789 is about 1752.8329395532.

The spelling of 5385444789 in words is "five billion, three hundred eighty-five million, four hundred forty-four thousand, seven hundred eighty-nine".