427698684913 has 4 divisors (see below), whose sum is σ = 427966500340. Its totient is φ = 427430869488.

The previous prime is 427698684899. The next prime is 427698684923. The reversal of 427698684913 is 319486896724.

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 31388145889 + 396310539024 = 177167^2 + 629532^2 .

It is a cyclic number.

It is not a de Polignac number, because 427698684913 - 2¹³ = 427698676721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (427698684923) 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, 133905318 + ... + 133908511.

It is an arithmetic number, because the mean of its divisors is an integer number (106991625085).

Almost surely, 2^427698684913 is an apocalyptic number.

It is an amenable number.

427698684913 is a deficient number, since it is larger than the sum of its proper divisors (267815427).

427698684913 is a wasteful number, since it uses less digits than its factorization.

427698684913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267815426.

The product of its digits is 125411328, while the sum is 67.

The spelling of 427698684913 in words is "four hundred twenty-seven billion, six hundred ninety-eight million, six hundred eighty-four thousand, nine hundred thirteen".