42658562647 has 2 divisors, whose sum is σ = 42658562648. Its totient is φ = 42658562646.

The previous prime is 42658562509. The next prime is 42658562659. The reversal of 42658562647 is 74626585624.

42658562647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42658562647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42658562147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21329281323 + 21329281324.

It is an arithmetic number, because the mean of its divisors is an integer number (21329281324).

Almost surely, 2^42658562647 is an apocalyptic number.

42658562647 is a deficient number, since it is larger than the sum of its proper divisors (1).

42658562647 is an equidigital number, since it uses as much as digits as its factorization.

42658562647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 55.

The spelling of 42658562647 in words is "forty-two billion, six hundred fifty-eight million, five hundred sixty-two thousand, six hundred forty-seven".