42334144687 has 2 divisors, whose sum is σ = 42334144688. Its totient is φ = 42334144686.

The previous prime is 42334144679. The next prime is 42334144693. The reversal of 42334144687 is 78644143324.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42334144687 - 2³ = 42334144679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42334144667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21167072343 + 21167072344.

It is an arithmetic number, because the mean of its divisors is an integer number (21167072344).

Almost surely, 2^42334144687 is an apocalyptic number.

42334144687 is a deficient number, since it is larger than the sum of its proper divisors (1).

42334144687 is an equidigital number, since it uses as much as digits as its factorization.

42334144687 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 46.

It can be divided in two parts, 423341 and 44687, that added together give a triangular number (468028 = T₉₆₇).

The spelling of 42334144687 in words is "forty-two billion, three hundred thirty-four million, one hundred forty-four thousand, six hundred eighty-seven".