7142619468781 has 2 divisors, whose sum is σ = 7142619468782. Its totient is φ = 7142619468780.

The previous prime is 7142619468739. The next prime is 7142619468883. The reversal of 7142619468781 is 1878649162417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3580076467881 + 3562543000900 = 1892109^2 + 1887470^2 .

It is an emirp because it is prime and its reverse (1878649162417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7142619468781 - 2¹⁹ = 7142618944493 is a prime.

It is a super-2 number, since 2×7142619468781² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7142619468701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3571309734390 + 3571309734391.

It is an arithmetic number, because the mean of its divisors is an integer number (3571309734391).

Almost surely, 2^{7142619468781} is an apocalyptic number.

It is an amenable number.

7142619468781 is a deficient number, since it is larger than the sum of its proper divisors (1).

7142619468781 is an equidigital number, since it uses as much as digits as its factorization.

7142619468781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32514048, while the sum is 64.

The spelling of 7142619468781 in words is "seven trillion, one hundred forty-two billion, six hundred nineteen million, four hundred sixty-eight thousand, seven hundred eighty-one".