1780762041427 has 2 divisors, whose sum is σ = 1780762041428. Its totient is φ = 1780762041426.

The previous prime is 1780762041371. The next prime is 1780762041503. The reversal of 1780762041427 is 7241402670871.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1780762041427 is a prime.

It is a super-2 number, since 2×1780762041427² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1780762041827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 890381020713 + 890381020714.

It is an arithmetic number, because the mean of its divisors is an integer number (890381020714).

Almost surely, 2^{1780762041427} is an apocalyptic number.

1780762041427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1780762041427 is an equidigital number, since it uses as much as digits as its factorization.

1780762041427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1053696, while the sum is 49.

The spelling of 1780762041427 in words is "one trillion, seven hundred eighty billion, seven hundred sixty-two million, forty-one thousand, four hundred twenty-seven".