427469889487 has 4 divisors (see below), whose sum is σ = 446055536880. Its totient is φ = 408884242096.

The previous prime is 427469889449. The next prime is 427469889521. The reversal of 427469889487 is 784988964724.

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 427469889487 - 2⁷ = 427469889359 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 (427469883487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9292823662 + ... + 9292823707.

It is an arithmetic number, because the mean of its divisors is an integer number (111513884220).

Almost surely, 2^427469889487 is an apocalyptic number.

427469889487 is a deficient number, since it is larger than the sum of its proper divisors (18585647393).

427469889487 is a wasteful number, since it uses less digits than its factorization.

427469889487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18585647392.

The product of its digits is 1560674304, while the sum is 76.

The spelling of 427469889487 in words is "four hundred twenty-seven billion, four hundred sixty-nine million, eight hundred eighty-nine thousand, four hundred eighty-seven".