780400916711 has 16 divisors (see below), whose sum is σ = 854265948480. Its totient is φ = 708513765120.

The previous prime is 780400916663. The next prime is 780400916717. The reversal of 780400916711 is 117619004087.

It is a cyclic number.

It is not a de Polignac number, because 780400916711 - 2²² = 780396722407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (780400916717) 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 15 ways as a sum of consecutive naturals, for example, 18764606 + ... + 18806148.

It is an arithmetic number, because the mean of its divisors is an integer number (53391621780).

Almost surely, 2^780400916711 is an apocalyptic number.

780400916711 is a deficient number, since it is larger than the sum of its proper divisors (73865031769).

780400916711 is a wasteful number, since it uses less digits than its factorization.

780400916711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65306.

The product of its (nonzero) digits is 84672, while the sum is 44.

The spelling of 780400916711 in words is "seven hundred eighty billion, four hundred million, nine hundred sixteen thousand, seven hundred eleven".