427347340837 has 2 divisors, whose sum is σ = 427347340838. Its totient is φ = 427347340836.

The previous prime is 427347340813. The next prime is 427347340873. The reversal of 427347340837 is 738043743724.

Together with next prime (427347340873) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 404293777281 + 23053563556 = 635841^2 + 151834^2 .

It is a cyclic number.

It is not a de Polignac number, because 427347340837 - 2²⁷ = 427213123109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427347340897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213673670418 + 213673670419.

It is an arithmetic number, because the mean of its divisors is an integer number (213673670419).

Almost surely, 2^427347340837 is an apocalyptic number.

It is an amenable number.

427347340837 is a deficient number, since it is larger than the sum of its proper divisors (1).

427347340837 is an equidigital number, since it uses as much as digits as its factorization.

427347340837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9483264, while the sum is 52.

The spelling of 427347340837 in words is "four hundred twenty-seven billion, three hundred forty-seven million, three hundred forty thousand, eight hundred thirty-seven".