39574338489 has 27 divisors (see below), whose sum is σ = 66502677423. Its totient is φ = 22611520512.

The previous prime is 39574338449. The next prime is 39574338509. The reversal of 39574338489 is 98483347593.

The square root of 39574338489 is 198933.

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

39574338489 is a `hidden beast` number, since 39 + 57 + 43 + 38 + 489 = 666.

It can be written as a sum of positive squares in only one way, i.e., 38512100025 + 1062238464 = 196245^2 + 32592^2 .

It is not a de Polignac number, because 39574338489 - 2¹¹ = 39574336441 is a prime.

It is a super-2 number, since 2×39574338489² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (39574338409) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4172857 + ... + 4182329.

Almost surely, 2^39574338489 is an apocalyptic number.

39574338489 is the 198933-rd square number.

39574338489 is the 99467-th centered octagonal number.

It is an amenable number.

39574338489 is a deficient number, since it is larger than the sum of its proper divisors (26928338934).

39574338489 is an frugal number, since it uses more digits than its factorization.

39574338489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18966 (or 9483 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

It can be divided in two parts, 395 and 74338489, that added together give a square (74338884 = 8622²).

The spelling of 39574338489 in words is "thirty-nine billion, five hundred seventy-four million, three hundred thirty-eight thousand, four hundred eighty-nine".