780839938027 has 2 divisors, whose sum is σ = 780839938028. Its totient is φ = 780839938026.

The previous prime is 780839938013. The next prime is 780839938057. The reversal of 780839938027 is 720839938087.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 780839938027 - 2¹¹ = 780839935979 is a prime.

It is a super-2 number, since 2×780839938027² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 780839938027.

It is not a weakly prime, because it can be changed into another prime (780839938057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390419969013 + 390419969014.

It is an arithmetic number, because the mean of its divisors is an integer number (390419969014).

Almost surely, 2^780839938027 is an apocalyptic number.

780839938027 is a deficient number, since it is larger than the sum of its proper divisors (1).

780839938027 is an equidigital number, since it uses as much as digits as its factorization.

780839938027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36578304, while the sum is 64.

The spelling of 780839938027 in words is "seven hundred eighty billion, eight hundred thirty-nine million, nine hundred thirty-eight thousand, twenty-seven".