780001022012 has 24 divisors (see below), whose sum is σ = 1375215634800. Its totient is φ = 387086280320.

The previous prime is 780001021991. The next prime is 780001022041. The reversal of 780001022012 is 210220100087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278312 + ... + 1279632.

It is an arithmetic number, because the mean of its divisors is an integer number (57300651450).

Almost surely, 2^780001022012 is an apocalyptic number.

It is an amenable number.

780001022012 is a deficient number, since it is larger than the sum of its proper divisors (595214612788).

780001022012 is a wasteful number, since it uses less digits than its factorization.

780001022012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002781 (or 1002779 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 780001022012 its reverse (210220100087), we get a palindrome (990221122099).

The spelling of 780001022012 in words is "seven hundred eighty billion, one million, twenty-two thousand, twelve".