42345505357 has 2 divisors, whose sum is σ = 42345505358. Its totient is φ = 42345505356.

The previous prime is 42345505327. The next prime is 42345505369. The reversal of 42345505357 is 75350554324.

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., 26482354756 + 15863150601 = 162734^2 + 125949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42345505357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42345505327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172752678 + 21172752679.

It is an arithmetic number, because the mean of its divisors is an integer number (21172752679).

Almost surely, 2^42345505357 is an apocalyptic number.

It is an amenable number.

42345505357 is a deficient number, since it is larger than the sum of its proper divisors (1).

42345505357 is an equidigital number, since it uses as much as digits as its factorization.

42345505357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260000, while the sum is 43.

The spelling of 42345505357 in words is "forty-two billion, three hundred forty-five million, five hundred five thousand, three hundred fifty-seven".