38635249556385 has 40 divisors (see below), whose sum is σ = 69257836694376. Its totient is φ = 20605295496960.

The previous prime is 38635249556383. The next prime is 38635249556467. The reversal of 38635249556385 is 58365594253683.

38635249556385 is a `hidden beast` number, since 3 + 8 + 6 + 3 + 5 + 2 + 495 + 56 + 3 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1354260530529 + 37280989025856 = 1163727^2 + 6105816^2 .

It is not a de Polignac number, because 38635249556385 - 2¹ = 38635249556383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38635249556383) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 59764707 + ... + 60407703.

Almost surely, 2^{38635249556385} is an apocalyptic number.

It is an amenable number.

38635249556385 is a deficient number, since it is larger than the sum of its proper divisors (30622587137991).

38635249556385 is a wasteful number, since it uses less digits than its factorization.

38635249556385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791375 (or 791366 counting only the distinct ones).

The product of its digits is 2799360000, while the sum is 72.

The spelling of 38635249556385 in words is "thirty-eight trillion, six hundred thirty-five billion, two hundred forty-nine million, five hundred fifty-six thousand, three hundred eighty-five".