780235406012 has 6 divisors (see below), whose sum is σ = 1365411960528. Its totient is φ = 390117703004.

The previous prime is 780235406003. The next prime is 780235406039. The reversal of 780235406012 is 210604532087.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97529425748 + ... + 97529425755.

It is an arithmetic number, because the mean of its divisors is an integer number (227568660088).

Almost surely, 2^780235406012 is an apocalyptic number.

It is an amenable number.

780235406012 is a deficient number, since it is larger than the sum of its proper divisors (585176554516).

780235406012 is a wasteful number, since it uses less digits than its factorization.

780235406012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195058851507 (or 195058851505 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

Adding to 780235406012 its reverse (210604532087), we get a palindrome (990839938099).

The spelling of 780235406012 in words is "seven hundred eighty billion, two hundred thirty-five million, four hundred six thousand, twelve".