780210211021012 has 12 divisors (see below), whose sum is σ = 1365368184571860. Its totient is φ = 390105015429056.

The previous prime is 780210211020983. The next prime is 780210211021019. The reversal of 780210211021012 is 210120112012087.

It can be written as a sum of positive squares in 2 ways, for example, as 758281632643396 + 21928578377616 = 27536914^2 + 4682796^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780210211021019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679123 + ... + 39507994.

It is an arithmetic number, because the mean of its divisors is an integer number (113780682047655).

Almost surely, 2^{780210211021012} is an apocalyptic number.

It is an amenable number.

780210211021012 is a deficient number, since it is larger than the sum of its proper divisors (585157973550848).

780210211021012 is a wasteful number, since it uses less digits than its factorization.

780210211021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45040730 (or 45040728 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 780210211021012 its reverse (210120112012087), we get a palindrome (990330323033099).

The spelling of 780210211021012 in words is "seven hundred eighty trillion, two hundred ten billion, two hundred eleven million, twenty-one thousand, twelve".