787445669141 has 2 divisors, whose sum is σ = 787445669142. Its totient is φ = 787445669140.

The previous prime is 787445669111. The next prime is 787445669201. The reversal of 787445669141 is 141966544787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413036297041 + 374409372100 = 642679^2 + 611890^2 .

It is a cyclic number.

It is not a de Polignac number, because 787445669141 - 2³⁸ = 512567762197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (787445669111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 393722834570 + 393722834571.

It is an arithmetic number, because the mean of its divisors is an integer number (393722834571).

Almost surely, 2^787445669141 is an apocalyptic number.

It is an amenable number.

787445669141 is a deficient number, since it is larger than the sum of its proper divisors (1).

787445669141 is an equidigital number, since it uses as much as digits as its factorization.

787445669141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40642560, while the sum is 62.

The spelling of 787445669141 in words is "seven hundred eighty-seven billion, four hundred forty-five million, six hundred sixty-nine thousand, one hundred forty-one".