3738665617 has 4 divisors (see below), whose sum is σ = 3901216320. Its totient is φ = 3576114916.

The previous prime is 3738665569. The next prime is 3738665621. The reversal of 3738665617 is 7165668373.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7165668373 = 439 ⋅16322707.

It is a cyclic number.

It is not a de Polignac number, because 3738665617 - 2²³ = 3730277009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3738665657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81275317 + ... + 81275362.

It is an arithmetic number, because the mean of its divisors is an integer number (975304080).

Almost surely, 2^3738665617 is an apocalyptic number.

It is an amenable number.

3738665617 is a deficient number, since it is larger than the sum of its proper divisors (162550703).

3738665617 is a wasteful number, since it uses less digits than its factorization.

3738665617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162550702.

The product of its digits is 3810240, while the sum is 52.

The square root of 3738665617 is about 61144.6286847831. The cubic root of 3738665617 is about 1552.0494038337.

The spelling of 3738665617 in words is "three billion, seven hundred thirty-eight million, six hundred sixty-five thousand, six hundred seventeen".