42986545531 has 2 divisors, whose sum is σ = 42986545532. Its totient is φ = 42986545530.

The previous prime is 42986545523. The next prime is 42986545549. The reversal of 42986545531 is 13554568924.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42986545531 - 2³ = 42986545523 is a prime.

It is a super-2 number, since 2×42986545531² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42986545501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21493272765 + 21493272766.

It is an arithmetic number, because the mean of its divisors is an integer number (21493272766).

Almost surely, 2^42986545531 is an apocalyptic number.

42986545531 is a deficient number, since it is larger than the sum of its proper divisors (1).

42986545531 is an equidigital number, since it uses as much as digits as its factorization.

42986545531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 52.

The spelling of 42986545531 in words is "forty-two billion, nine hundred eighty-six million, five hundred forty-five thousand, five hundred thirty-one".