39945915198316 has 24 divisors (see below), whose sum is σ = 74018730725856. Its totient is φ = 18797747677440.

The previous prime is 39945915198281. The next prime is 39945915198323. The reversal of 39945915198316 is 61389151954993.

It is a super-2 number, since 2×39945915198316² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1234171 + ... + 9023026.

It is an arithmetic number, because the mean of its divisors is an integer number (3084113780244).

Almost surely, 2^{39945915198316} is an apocalyptic number.

It is an amenable number.

39945915198316 is a deficient number, since it is larger than the sum of its proper divisors (34072815527540).

39945915198316 is a wasteful number, since it uses less digits than its factorization.

39945915198316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10314489 (or 10314487 counting only the distinct ones).

The product of its digits is 283435200, while the sum is 73.

The spelling of 39945915198316 in words is "thirty-nine trillion, nine hundred forty-five billion, nine hundred fifteen million, one hundred ninety-eight thousand, three hundred sixteen".