42313869551 has 2 divisors, whose sum is σ = 42313869552. Its totient is φ = 42313869550.

The previous prime is 42313869539. The next prime is 42313869569. The reversal of 42313869551 is 15596831324.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42313869551 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 42313869496 and 42313869505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42313869581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21156934775 + 21156934776.

It is an arithmetic number, because the mean of its divisors is an integer number (21156934776).

Almost surely, 2^42313869551 is an apocalyptic number.

42313869551 is a deficient number, since it is larger than the sum of its proper divisors (1).

42313869551 is an equidigital number, since it uses as much as digits as its factorization.

42313869551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 47.

The spelling of 42313869551 in words is "forty-two billion, three hundred thirteen million, eight hundred sixty-nine thousand, five hundred fifty-one".