42107457349 has 2 divisors, whose sum is σ = 42107457350. Its totient is φ = 42107457348.

The previous prime is 42107457341. The next prime is 42107457361. The reversal of 42107457349 is 94375470124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26628365124 + 15479092225 = 163182^2 + 124415^2 .

It is a cyclic number.

It is not a de Polignac number, because 42107457349 - 2³ = 42107457341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42107457299 and 42107457308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42107457341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21053728674 + 21053728675.

It is an arithmetic number, because the mean of its divisors is an integer number (21053728675).

Almost surely, 2^42107457349 is an apocalyptic number.

It is an amenable number.

42107457349 is a deficient number, since it is larger than the sum of its proper divisors (1).

42107457349 is an equidigital number, since it uses as much as digits as its factorization.

42107457349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 846720, while the sum is 46.

The spelling of 42107457349 in words is "forty-two billion, one hundred seven million, four hundred fifty-seven thousand, three hundred forty-nine".