770128405018 has 32 divisors (see below), whose sum is σ = 1338107037696. Its totient is φ = 325607674608.

The previous prime is 770128404979. The next prime is 770128405099. The reversal of 770128405018 is 810504821077.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 636096 + ... + 1394587.

It is an arithmetic number, because the mean of its divisors is an integer number (41815844928).

Almost surely, 2^770128405018 is an apocalyptic number.

770128405018 is a deficient number, since it is larger than the sum of its proper divisors (567978632678).

770128405018 is a wasteful number, since it uses less digits than its factorization.

770128405018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031058.

The product of its (nonzero) digits is 125440, while the sum is 43.

The spelling of 770128405018 in words is "seven hundred seventy billion, one hundred twenty-eight million, four hundred five thousand, eighteen".