39981876299 has 4 divisors (see below), whose sum is σ = 40463585736. Its totient is φ = 39500166864.

The previous prime is 39981876247. The next prime is 39981876313. The reversal of 39981876299 is 99267818993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39981876299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39981876239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240854594 + ... + 240854759.

It is an arithmetic number, because the mean of its divisors is an integer number (10115896434).

Almost surely, 2^39981876299 is an apocalyptic number.

39981876299 is a deficient number, since it is larger than the sum of its proper divisors (481709437).

39981876299 is an equidigital number, since it uses as much as digits as its factorization.

39981876299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 481709436.

The product of its digits is 105815808, while the sum is 71.

The spelling of 39981876299 in words is "thirty-nine billion, nine hundred eighty-one million, eight hundred seventy-six thousand, two hundred ninety-nine".