427769484973 has 4 divisors (see below), whose sum is σ = 427773211900. Its totient is φ = 427765758048.

The previous prime is 427769484937. The next prime is 427769484983. The reversal of 427769484973 is 379484967724.

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

It can be written as a sum of positive squares in 2 ways, for example, as 260015346889 + 167754138084 = 509917^2 + 409578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427769484973 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 (427769484913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1685640 + ... + 1922737.

It is an arithmetic number, because the mean of its divisors is an integer number (106943302975).

Almost surely, 2^427769484973 is an apocalyptic number.

It is an amenable number.

427769484973 is a deficient number, since it is larger than the sum of its proper divisors (3726927).

427769484973 is a wasteful number, since it uses less digits than its factorization.

427769484973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726926.

The product of its digits is 512096256, while the sum is 70.

The spelling of 427769484973 in words is "four hundred twenty-seven billion, seven hundred sixty-nine million, four hundred eighty-four thousand, nine hundred seventy-three".