42144356357 has 2 divisors, whose sum is σ = 42144356358. Its totient is φ = 42144356356.

The previous prime is 42144356329. The next prime is 42144356369. The reversal of 42144356357 is 75365344124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22222163041 + 19922193316 = 149071^2 + 141146^2 .

It is a cyclic number.

It is not a de Polignac number, because 42144356357 - 2¹⁰ = 42144355333 is a prime.

It is a super-2 number, since 2×42144356357² (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 (42144358357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072178178 + 21072178179.

It is an arithmetic number, because the mean of its divisors is an integer number (21072178179).

Almost surely, 2^42144356357 is an apocalyptic number.

It is an amenable number.

42144356357 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144356357 is an equidigital number, since it uses as much as digits as its factorization.

42144356357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1209600, while the sum is 44.

The spelling of 42144356357 in words is "forty-two billion, one hundred forty-four million, three hundred fifty-six thousand, three hundred fifty-seven".