42456534713 has 2 divisors, whose sum is σ = 42456534714. Its totient is φ = 42456534712.

The previous prime is 42456534691. The next prime is 42456534727. The reversal of 42456534713 is 31743565424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27573266704 + 14883268009 = 166052^2 + 121997^2 .

It is a cyclic number.

It is not a de Polignac number, because 42456534713 - 2⁶ = 42456534649 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42456534793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21228267356 + 21228267357.

It is an arithmetic number, because the mean of its divisors is an integer number (21228267357).

Almost surely, 2^42456534713 is an apocalyptic number.

It is an amenable number.

42456534713 is a deficient number, since it is larger than the sum of its proper divisors (1).

42456534713 is an equidigital number, since it uses as much as digits as its factorization.

42456534713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 44.

The spelling of 42456534713 in words is "forty-two billion, four hundred fifty-six million, five hundred thirty-four thousand, seven hundred thirteen".