770842755 has 12 divisors (see below), whose sum is σ = 1336127520. Its totient is φ = 411116112.

The previous prime is 770842717. The next prime is 770842757. The reversal of 770842755 is 557248077.

It is not a de Polignac number, because 770842755 - 2¹⁵ = 770809987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 17129839 = 770842755 / (7 + 7 + 0 + 8 + 4 + 2 + 7 + 5 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 770842755.

It is not an unprimeable number, because it can be changed into a prime (770842757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8564875 + ... + 8564964.

It is an arithmetic number, because the mean of its divisors is an integer number (111343960).

Almost surely, 2^770842755 is an apocalyptic number.

770842755 is a deficient number, since it is larger than the sum of its proper divisors (565284765).

770842755 is a wasteful number, since it uses less digits than its factorization.

770842755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17129850 (or 17129847 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 45.

The square root of 770842755 is about 27764.0550892697. The cubic root of 770842755 is about 916.8999132439.

The spelling of 770842755 in words is "seven hundred seventy million, eight hundred forty-two thousand, seven hundred fifty-five".