38585923489 has 9 divisors (see below), whose sum is σ = 39664442937. Its totient is φ = 37535989104.

The previous prime is 38585923483. The next prime is 38585923499. The reversal of 38585923489 is 98432958583.

The square root of 38585923489 is 196433.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 2786256225 + 35799667264 = 52785^2 + 189208^2 .

It is not a de Polignac number, because 38585923489 - 2⁵ = 38585923457 is a prime.

It is a super-3 number, since 3×38585923489³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38585923489.

It is not an unprimeable number, because it can be changed into a prime (38585923483) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7265367 + ... + 7270675.

Almost surely, 2^38585923489 is an apocalyptic number.

38585923489 is the 196433-rd square number.

38585923489 is the 98217-th centered octagonal number.

It is an amenable number.

38585923489 is a deficient number, since it is larger than the sum of its proper divisors (1078519448).

38585923489 is an frugal number, since it uses more digits than its factorization.

38585923489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10692 (or 5346 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 64.

Multiplying 38585923489 by its sum of digits (64), we get a square (2469499103296 = 1571464²).

The spelling of 38585923489 in words is "thirty-eight billion, five hundred eighty-five million, nine hundred twenty-three thousand, four hundred eighty-nine".