42498705547 has 2 divisors, whose sum is σ = 42498705548. Its totient is φ = 42498705546.

The previous prime is 42498705533. The next prime is 42498705581. The reversal of 42498705547 is 74550789424.

42498705547 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 is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42498705547 is a prime.

It is a super-2 number, since 2×42498705547² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42498705517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21249352773 + 21249352774.

It is an arithmetic number, because the mean of its divisors is an integer number (21249352774).

Almost surely, 2^42498705547 is an apocalyptic number.

42498705547 is a deficient number, since it is larger than the sum of its proper divisors (1).

42498705547 is an equidigital number, since it uses as much as digits as its factorization.

42498705547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11289600, while the sum is 55.

The spelling of 42498705547 in words is "forty-two billion, four hundred ninety-eight million, seven hundred five thousand, five hundred forty-seven".