38472839999 has 4 divisors (see below), whose sum is σ = 41970370920. Its totient is φ = 34975309080.

The previous prime is 38472839981. The next prime is 38472840001. The reversal of 38472839999 is 99993827483.

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-38472839999 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 (38472839969) 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, 1748765444 + ... + 1748765465.

It is an arithmetic number, because the mean of its divisors is an integer number (10492592730).

Almost surely, 2^38472839999 is an apocalyptic number.

38472839999 is a deficient number, since it is larger than the sum of its proper divisors (3497530921).

38472839999 is a wasteful number, since it uses less digits than its factorization.

38472839999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497530920.

The product of its digits is 211631616, while the sum is 71.

The spelling of 38472839999 in words is "thirty-eight billion, four hundred seventy-two million, eight hundred thirty-nine thousand, nine hundred ninety-nine".