42406461373 has 2 divisors, whose sum is σ = 42406461374. Its totient is φ = 42406461372.

The previous prime is 42406461371. The next prime is 42406461413. The reversal of 42406461373 is 37316460424.

It is a happy number.

It is an a-pointer prime, because the next prime (42406461413) can be obtained adding 42406461373 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38061278649 + 4345182724 = 195093^2 + 65918^2 .

It is a cyclic number.

It is not a de Polignac number, because 42406461373 - 2¹ = 42406461371 is a prime.

Together with 42406461371, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42406461371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21203230686 + 21203230687.

It is an arithmetic number, because the mean of its divisors is an integer number (21203230687).

Almost surely, 2^42406461373 is an apocalyptic number.

It is an amenable number.

42406461373 is a deficient number, since it is larger than the sum of its proper divisors (1).

42406461373 is an equidigital number, since it uses as much as digits as its factorization.

42406461373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 40.

The spelling of 42406461373 in words is "forty-two billion, four hundred six million, four hundred sixty-one thousand, three hundred seventy-three".