42340663501 has 2 divisors, whose sum is σ = 42340663502. Its totient is φ = 42340663500.

The previous prime is 42340663459. The next prime is 42340663513. The reversal of 42340663501 is 10536604324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36214470601 + 6126192900 = 190301^2 + 78270^2 .

It is a cyclic number.

It is not a de Polignac number, because 42340663501 - 2¹⁹ = 42340139213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42340663571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21170331750 + 21170331751.

It is an arithmetic number, because the mean of its divisors is an integer number (21170331751).

Almost surely, 2^42340663501 is an apocalyptic number.

It is an amenable number.

42340663501 is a deficient number, since it is larger than the sum of its proper divisors (1).

42340663501 is an equidigital number, since it uses as much as digits as its factorization.

42340663501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 42340663501 in words is "forty-two billion, three hundred forty million, six hundred sixty-three thousand, five hundred one".