42704123568541 has 2 divisors, whose sum is σ = 42704123568542. Its totient is φ = 42704123568540.

The previous prime is 42704123568493. The next prime is 42704123568571. The reversal of 42704123568541 is 14586532140724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35739221976441 + 6964901592100 = 5978229^2 + 2639110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42704123568541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42704123568571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21352061784270 + 21352061784271.

It is an arithmetic number, because the mean of its divisors is an integer number (21352061784271).

Almost surely, 2^{42704123568541} is an apocalyptic number.

It is an amenable number.

42704123568541 is a deficient number, since it is larger than the sum of its proper divisors (1).

42704123568541 is an equidigital number, since it uses as much as digits as its factorization.

42704123568541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6451200, while the sum is 52.

The spelling of 42704123568541 in words is "forty-two trillion, seven hundred four billion, one hundred twenty-three million, five hundred sixty-eight thousand, five hundred forty-one".