42346196561 has 2 divisors, whose sum is σ = 42346196562. Its totient is φ = 42346196560.

The previous prime is 42346196539. The next prime is 42346196587. The reversal of 42346196561 is 16569164324.

42346196561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27144539536 + 15201657025 = 164756^2 + 123295^2 .

It is a cyclic number.

It is not a de Polignac number, because 42346196561 - 2¹⁰ = 42346195537 is a prime.

It is not a weakly prime, because it can be changed into another prime (42346196861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21173098280 + 21173098281.

It is an arithmetic number, because the mean of its divisors is an integer number (21173098281).

Almost surely, 2^42346196561 is an apocalyptic number.

It is an amenable number.

42346196561 is a deficient number, since it is larger than the sum of its proper divisors (1).

42346196561 is an equidigital number, since it uses as much as digits as its factorization.

42346196561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 47.

The spelling of 42346196561 in words is "forty-two billion, three hundred forty-six million, one hundred ninety-six thousand, five hundred sixty-one".