487823894939 has 4 divisors (see below), whose sum is σ = 499722038760. Its totient is φ = 475925751120.

The previous prime is 487823894923. The next prime is 487823894977. The reversal of 487823894939 is 939498328784.

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

It is a cyclic number.

It is not a de Polignac number, because 487823894939 - 2⁴ = 487823894923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (487823894339) 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, 5949071849 + ... + 5949071930.

It is an arithmetic number, because the mean of its divisors is an integer number (124930509690).

Almost surely, 2^487823894939 is an apocalyptic number.

487823894939 is a deficient number, since it is larger than the sum of its proper divisors (11898143821).

487823894939 is a wasteful number, since it uses less digits than its factorization.

487823894939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11898143820.

The product of its digits is 752467968, while the sum is 74.

The spelling of 487823894939 in words is "four hundred eighty-seven billion, eight hundred twenty-three million, eight hundred ninety-four thousand, nine hundred thirty-nine".