42685763347 has 2 divisors, whose sum is σ = 42685763348. Its totient is φ = 42685763346.

The previous prime is 42685763327. The next prime is 42685763359. The reversal of 42685763347 is 74336758624.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42685763347 - 2¹⁹ = 42685239059 is a prime.

It is a super-3 number, since 3×42685763347³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (42685763327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21342881673 + 21342881674.

It is an arithmetic number, because the mean of its divisors is an integer number (21342881674).

Almost surely, 2^42685763347 is an apocalyptic number.

42685763347 is a deficient number, since it is larger than the sum of its proper divisors (1).

42685763347 is an equidigital number, since it uses as much as digits as its factorization.

42685763347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20321280, while the sum is 55.

The spelling of 42685763347 in words is "forty-two billion, six hundred eighty-five million, seven hundred sixty-three thousand, three hundred forty-seven".