39981876297 has 32 divisors (see below), whose sum is σ = 58374051840. Its totient is φ = 24140521920.

The previous prime is 39981876247. The next prime is 39981876313. The reversal of 39981876297 is 79267818993.

It is not a de Polignac number, because 39981876297 - 2⁸ = 39981876041 is a prime.

It is a super-2 number, since 2×39981876297² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39981876247) 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, 16776768 + ... + 16779150.

It is an arithmetic number, because the mean of its divisors is an integer number (1824189120).

Almost surely, 2^39981876297 is an apocalyptic number.

It is an amenable number.

39981876297 is a deficient number, since it is larger than the sum of its proper divisors (18392175543).

39981876297 is a wasteful number, since it uses less digits than its factorization.

39981876297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093.

The product of its digits is 82301184, while the sum is 69.

The spelling of 39981876297 in words is "thirty-nine billion, nine hundred eighty-one million, eight hundred seventy-six thousand, two hundred ninety-seven".