39817229145 has 16 divisors (see below), whose sum is σ = 63715540992. Its totient is φ = 21233197440.

The previous prime is 39817229119. The next prime is 39817229147. The reversal of 39817229145 is 54192271893.

It is not a de Polignac number, because 39817229145 - 2⁵ = 39817229113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39817229147) 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, 39172 + ... + 284901.

It is an arithmetic number, because the mean of its divisors is an integer number (3982221312).

Almost surely, 2^39817229145 is an apocalyptic number.

It is an amenable number.

39817229145 is a deficient number, since it is larger than the sum of its proper divisors (23898311847).

39817229145 is a wasteful number, since it uses less digits than its factorization.

39817229145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332272.

The product of its digits is 1088640, while the sum is 51.

The spelling of 39817229145 in words is "thirty-nine billion, eight hundred seventeen million, two hundred twenty-nine thousand, one hundred forty-five".