39145828997 has 16 divisors (see below), whose sum is σ = 43755513984. Its totient is φ = 34711680000.

The previous prime is 39145828963. The next prime is 39145828999. The reversal of 39145828997 is 79982854193.

It is a cyclic number.

It is not a de Polignac number, because 39145828997 - 2²⁰ = 39144780421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39145828999) 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 15 ways as a sum of consecutive naturals, for example, 4032053 + ... + 4041749.

It is an arithmetic number, because the mean of its divisors is an integer number (2734719624).

Almost surely, 2^39145828997 is an apocalyptic number.

It is an amenable number.

39145828997 is a deficient number, since it is larger than the sum of its proper divisors (4609684987).

39145828997 is a wasteful number, since it uses less digits than its factorization.

39145828997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18700.

The product of its digits is 39191040, while the sum is 65.

The spelling of 39145828997 in words is "thirty-nine billion, one hundred forty-five million, eight hundred twenty-eight thousand, nine hundred ninety-seven".