38660604129 has 45 divisors (see below), whose sum is σ = 67202733411. Its totient is φ = 22084695360.

The previous prime is 38660604127. The next prime is 38660604137. The reversal of 38660604129 is 92140606683.

The square root of 38660604129 is 196623.

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

38660604129 is a `hidden beast` number, since 38 + 6 + 6 + 0 + 604 + 1 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 24770529 + 38635833600 = 4977^2 + 196560^2 .

It is not a de Polignac number, because 38660604129 - 2¹ = 38660604127 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38660604127) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 12385689 + ... + 12388809.

Almost surely, 2^38660604129 is an apocalyptic number.

38660604129 is the 196623-rd square number.

38660604129 is the 98312-nd centered octagonal number.

It is an amenable number.

38660604129 is a deficient number, since it is larger than the sum of its proper divisors (28542129282).

38660604129 is an frugal number, since it uses more digits than its factorization.

38660604129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268 (or 3131 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The spelling of 38660604129 in words is "thirty-eight billion, six hundred sixty million, six hundred four thousand, one hundred twenty-nine".