42047104349 has 2 divisors, whose sum is σ = 42047104350. Its totient is φ = 42047104348.

The previous prime is 42047104313. The next prime is 42047104357. The reversal of 42047104349 is 94340174024.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34231660324 + 7815444025 = 185018^2 + 88405^2 .

It is a cyclic number.

It is not a de Polignac number, because 42047104349 - 2¹² = 42047100253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42047103349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21023552174 + 21023552175.

It is an arithmetic number, because the mean of its divisors is an integer number (21023552175).

Almost surely, 2^42047104349 is an apocalyptic number.

It is an amenable number.

42047104349 is a deficient number, since it is larger than the sum of its proper divisors (1).

42047104349 is an equidigital number, since it uses as much as digits as its factorization.

42047104349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 42047104349 in words is "forty-two billion, forty-seven million, one hundred four thousand, three hundred forty-nine".