38408552361 has 9 divisors (see below), whose sum is σ = 55479869341. Its totient is φ = 25605309612.

The previous prime is 38408552359. The next prime is 38408552393. The reversal of 38408552361 is 16325580483.

The square root of 38408552361 is 195981.

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

38408552361 is a `hidden beast` number, since 3 + 8 + 40 + 85 + 523 + 6 + 1 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 38408552361 - 2¹ = 38408552359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38408559361) 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, 555280 + ... + 620606.

Almost surely, 2^38408552361 is an apocalyptic number.

38408552361 is the 195981-st square number.

38408552361 is the 97991-st centered octagonal number.

It is an amenable number.

38408552361 is a deficient number, since it is larger than the sum of its proper divisors (17071316980).

38408552361 is an frugal number, since it uses more digits than its factorization.

38408552361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130660 (or 65330 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The spelling of 38408552361 in words is "thirty-eight billion, four hundred eight million, five hundred fifty-two thousand, three hundred sixty-one".