42779963543 has 2 divisors, whose sum is σ = 42779963544. Its totient is φ = 42779963542.

The previous prime is 42779963537. The next prime is 42779963549. The reversal of 42779963543 is 34536997724.

It is a balanced prime because it is at equal distance from previous prime (42779963537) and next prime (42779963549).

It is a cyclic number.

It is not a de Polignac number, because 42779963543 - 2¹⁸ = 42779701399 is a prime.

It is a super-2 number, since 2×42779963543² (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 (42779963549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21389981771 + 21389981772.

It is an arithmetic number, because the mean of its divisors is an integer number (21389981772).

Almost surely, 2^42779963543 is an apocalyptic number.

42779963543 is a deficient number, since it is larger than the sum of its proper divisors (1).

42779963543 is an equidigital number, since it uses as much as digits as its factorization.

42779963543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 59.

The spelling of 42779963543 in words is "forty-two billion, seven hundred seventy-nine million, nine hundred sixty-three thousand, five hundred forty-three".