39471683879 has 4 divisors (see below), whose sum is σ = 40538486184. Its totient is φ = 38404881576.

The previous prime is 39471683821. The next prime is 39471683989. The reversal of 39471683879 is 97838617493.

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-39471683879 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 (39471683179) 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, 533401097 + ... + 533401170.

It is an arithmetic number, because the mean of its divisors is an integer number (10134621546).

Almost surely, 2^39471683879 is an apocalyptic number.

39471683879 is a deficient number, since it is larger than the sum of its proper divisors (1066802305).

39471683879 is a wasteful number, since it uses less digits than its factorization.

39471683879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066802304.

The product of its digits is 54867456, while the sum is 65.

The spelling of 39471683879 in words is "thirty-nine billion, four hundred seventy-one million, six hundred eighty-three thousand, eight hundred seventy-nine".