42867395647 has 2 divisors, whose sum is σ = 42867395648. Its totient is φ = 42867395646.

The previous prime is 42867395633. The next prime is 42867395693. The reversal of 42867395647 is 74659376824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42867395647 - 2²³ = 42859007039 is a prime.

It is a super-2 number, since 2×42867395647² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42867395047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21433697823 + 21433697824.

It is an arithmetic number, because the mean of its divisors is an integer number (21433697824).

Almost surely, 2^42867395647 is an apocalyptic number.

42867395647 is a deficient number, since it is larger than the sum of its proper divisors (1).

42867395647 is an equidigital number, since it uses as much as digits as its factorization.

42867395647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60963840, while the sum is 61.

The spelling of 42867395647 in words is "forty-two billion, eight hundred sixty-seven million, three hundred ninety-five thousand, six hundred forty-seven".