42987334853 has 2 divisors, whose sum is σ = 42987334854. Its totient is φ = 42987334852.

The previous prime is 42987334799. The next prime is 42987334861. The reversal of 42987334853 is 35843378924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41870572129 + 1116762724 = 204623^2 + 33418^2 .

It is a cyclic number.

It is not a de Polignac number, because 42987334853 - 2²⁸ = 42718899397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42987334883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21493667426 + 21493667427.

It is an arithmetic number, because the mean of its divisors is an integer number (21493667427).

Almost surely, 2^42987334853 is an apocalyptic number.

It is an amenable number.

42987334853 is a deficient number, since it is larger than the sum of its proper divisors (1).

42987334853 is an equidigital number, since it uses as much as digits as its factorization.

42987334853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 56.

The spelling of 42987334853 in words is "forty-two billion, nine hundred eighty-seven million, three hundred thirty-four thousand, eight hundred fifty-three".