4143781376639 has 2 divisors, whose sum is σ = 4143781376640. Its totient is φ = 4143781376638.

The previous prime is 4143781376633. The next prime is 4143781376717. The reversal of 4143781376639 is 9366731873414.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4143781376639 - 2²⁴ = 4143764599423 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4143781376633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071890688319 + 2071890688320.

It is an arithmetic number, because the mean of its divisors is an integer number (2071890688320).

Almost surely, 2^{4143781376639} is an apocalyptic number.

4143781376639 is a deficient number, since it is larger than the sum of its proper divisors (1).

4143781376639 is an equidigital number, since it uses as much as digits as its factorization.

4143781376639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54867456, while the sum is 62.

The spelling of 4143781376639 in words is "four trillion, one hundred forty-three billion, seven hundred eighty-one million, three hundred seventy-six thousand, six hundred thirty-nine".