38707808049 has 9 divisors (see below), whose sum is σ = 55912130859. Its totient is φ = 25804811880.

The previous prime is 38707808017. The next prime is 38707808099. The reversal of 38707808049 is 94080870783.

The square root of 38707808049 is 196743.

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

It can be written as a sum of positive squares in only one way, i.e., 986399649 + 37721408400 = 31407^2 + 194220^2 .

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

It is not a de Polignac number, because 38707808049 - 2⁵ = 38707808017 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 38707807986 and 38707808004.

It is not an unprimeable number, because it can be changed into a prime (38707808099) 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, 557439 + ... + 623019.

Almost surely, 2^38707808049 is an apocalyptic number.

38707808049 is the 196743-rd square number.

38707808049 is the 98372-nd centered octagonal number.

It is an amenable number.

38707808049 is a deficient number, since it is larger than the sum of its proper divisors (17204322810).

38707808049 is an frugal number, since it uses more digits than its factorization.

38707808049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131168 (or 65584 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The spelling of 38707808049 in words is "thirty-eight billion, seven hundred seven million, eight hundred eight thousand, forty-nine".