39474239999 has 4 divisors (see below), whose sum is σ = 39949833336. Its totient is φ = 38998646664.

The previous prime is 39474239977. The next prime is 39474240037. The reversal of 39474239999 is 99993247493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99993247493 = 29 ⋅3448043017.

It is a cyclic number.

It is not a de Polignac number, because 39474239999 - 2¹² = 39474235903 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 (39474229999) 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, 237796544 + ... + 237796709.

It is an arithmetic number, because the mean of its divisors is an integer number (9987458334).

Almost surely, 2^39474239999 is an apocalyptic number.

39474239999 is a deficient number, since it is larger than the sum of its proper divisors (475593337).

39474239999 is an equidigital number, since it uses as much as digits as its factorization.

39474239999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475593336.

The product of its digits is 119042784, while the sum is 68.

The spelling of 39474239999 in words is "thirty-nine billion, four hundred seventy-four million, two hundred thirty-nine thousand, nine hundred ninety-nine".