780068338068 has 12 divisors (see below), whose sum is σ = 1820159455520. Its totient is φ = 260022779352.

The previous prime is 780068338051. The next prime is 780068338073. The reversal of 780068338068 is 860833860087.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×780068338068² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 780068337999 and 780068338017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32502847408 + ... + 32502847431.

Almost surely, 2^780068338068 is an apocalyptic number.

It is an amenable number.

780068338068 is an abundant number, since it is smaller than the sum of its proper divisors (1040091117452).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

780068338068 is a wasteful number, since it uses less digits than its factorization.

780068338068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65005694846 (or 65005694844 counting only the distinct ones).

The product of its (nonzero) digits is 9289728, while the sum is 57.

The spelling of 780068338068 in words is "seven hundred eighty billion, sixty-eight million, three hundred thirty-eight thousand, sixty-eight".