427188316013 has 4 divisors (see below), whose sum is σ = 428553135228. Its totient is φ = 425823496800.

The previous prime is 427188315971. The next prime is 427188316069. The reversal of 427188316013 is 310613881724.

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 75560663689 + 351627652324 = 274883^2 + 592982^2 .

It is a cyclic number.

It is not a de Polignac number, because 427188316013 - 2⁶ = 427188315949 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 (427188316073) 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, 682409138 + ... + 682409763.

It is an arithmetic number, because the mean of its divisors is an integer number (107138283807).

Almost surely, 2^427188316013 is an apocalyptic number.

It is an amenable number.

427188316013 is a deficient number, since it is larger than the sum of its proper divisors (1364819215).

427188316013 is a wasteful number, since it uses less digits than its factorization.

427188316013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364819214.

The product of its (nonzero) digits is 193536, while the sum is 44.

The spelling of 427188316013 in words is "four hundred twenty-seven billion, one hundred eighty-eight million, three hundred sixteen thousand, thirteen".