38387504782065 has 32 divisors (see below), whose sum is σ = 64422135728640. Its totient is φ = 19496172628224.

The previous prime is 38387504782009. The next prime is 38387504782111. The reversal of 38387504782065 is 56028740578383.

38387504782065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38387504782065 - 2¹⁸ = 38387504519921 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38387504781987 and 38387504782005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 735789610 + ... + 735841779.

It is an arithmetic number, because the mean of its divisors is an integer number (2013191741520).

Almost surely, 2^{38387504782065} is an apocalyptic number.

It is an amenable number.

38387504782065 is a deficient number, since it is larger than the sum of its proper divisors (26034630946575).

38387504782065 is a wasteful number, since it uses less digits than its factorization.

38387504782065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471631481.

The product of its (nonzero) digits is 270950400, while the sum is 66.

The spelling of 38387504782065 in words is "thirty-eight trillion, three hundred eighty-seven billion, five hundred four million, seven hundred eighty-two thousand, sixty-five".