770073076785 has 16 divisors (see below), whose sum is σ = 1237956344640. Its totient is φ = 408759167040.

The previous prime is 770073076781. The next prime is 770073076793. The reversal of 770073076785 is 587670370077.

It is a happy number.

It is not a de Polignac number, because 770073076785 - 2² = 770073076781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (770073076781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121651350 + ... + 121657679.

It is an arithmetic number, because the mean of its divisors is an integer number (77372271540).

Almost surely, 2^770073076785 is an apocalyptic number.

It is an amenable number.

770073076785 is a deficient number, since it is larger than the sum of its proper divisors (467883267855).

770073076785 is a wasteful number, since it uses less digits than its factorization.

770073076785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243309248.

The product of its (nonzero) digits is 12101040, while the sum is 57.

The spelling of 770073076785 in words is "seven hundred seventy billion, seventy-three million, seventy-six thousand, seven hundred eighty-five".