38906084945 has 32 divisors (see below), whose sum is σ = 58318971648. Its totient is φ = 24258693888.

The previous prime is 38906084929. The next prime is 38906084947. The reversal of 38906084945 is 54948060983.

It is a happy number.

It is not a de Polignac number, because 38906084945 - 2⁴ = 38906084929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38906084947) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 607634 + ... + 668603.

It is an arithmetic number, because the mean of its divisors is an integer number (1822467864).

Almost surely, 2^38906084945 is an apocalyptic number.

38906084945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38906084945 is a deficient number, since it is larger than the sum of its proper divisors (19412886703).

38906084945 is a wasteful number, since it uses less digits than its factorization.

38906084945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276329.

The product of its (nonzero) digits is 7464960, while the sum is 56.

The spelling of 38906084945 in words is "thirty-eight billion, nine hundred six million, eighty-four thousand, nine hundred forty-five".