780124400026 has 16 divisors (see below), whose sum is σ = 1187945663040. Its totient is φ = 384154341760.

The previous prime is 780124400023. The next prime is 780124400147. The reversal of 780124400026 is 620004421087.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 780124399964 and 780124400000.

It is not an unprimeable number, because it can be changed into a prime (780124400021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2824936 + ... + 3088771.

It is an arithmetic number, because the mean of its divisors is an integer number (74246603940).

Almost surely, 2^780124400026 is an apocalyptic number.

780124400026 is a deficient number, since it is larger than the sum of its proper divisors (407821263014).

780124400026 is a wasteful number, since it uses less digits than its factorization.

780124400026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5914709.

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 780124400026 in words is "seven hundred eighty billion, one hundred twenty-four million, four hundred thousand, twenty-six".