42993992843 has 2 divisors, whose sum is σ = 42993992844. Its totient is φ = 42993992842.

The previous prime is 42993992791. The next prime is 42993992917. The reversal of 42993992843 is 34829939924.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42993992843 - 2¹⁰ = 42993991819 is a prime.

It is not a weakly prime, because it can be changed into another prime (42993998843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21496996421 + 21496996422.

It is an arithmetic number, because the mean of its divisors is an integer number (21496996422).

Almost surely, 2^42993992843 is an apocalyptic number.

42993992843 is a deficient number, since it is larger than the sum of its proper divisors (1).

42993992843 is an equidigital number, since it uses as much as digits as its factorization.

42993992843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30233088, while the sum is 62.

The spelling of 42993992843 in words is "forty-two billion, nine hundred ninety-three million, nine hundred ninety-two thousand, eight hundred forty-three".