42371523547 has 2 divisors, whose sum is σ = 42371523548. Its totient is φ = 42371523546.

The previous prime is 42371523497. The next prime is 42371523559. The reversal of 42371523547 is 74532517324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42371523547 - 2⁷ = 42371523419 is a prime.

It is a super-2 number, since 2×42371523547² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42371523587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21185761773 + 21185761774.

It is an arithmetic number, because the mean of its divisors is an integer number (21185761774).

Almost surely, 2^42371523547 is an apocalyptic number.

42371523547 is a deficient number, since it is larger than the sum of its proper divisors (1).

42371523547 is an equidigital number, since it uses as much as digits as its factorization.

42371523547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 43.

The spelling of 42371523547 in words is "forty-two billion, three hundred seventy-one million, five hundred twenty-three thousand, five hundred forty-seven".