770155008 has 160 divisors (see below), whose sum is σ = 2375847936. Its totient is φ = 217141248.

The previous prime is 770155007. The next prime is 770155013. The reversal of 770155008 is 800551077.

It is a self number, because there is not a number n which added to its sum of digits gives 770155008.

It is not an unprimeable number, because it can be changed into a prime (770155007) 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 15 ways as a sum of consecutive naturals, for example, 891985 + ... + 892847.

Almost surely, 2^770155008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 770155008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187923968).

770155008 is an abundant number, since it is smaller than the sum of its proper divisors (1605692928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

770155008 is an equidigital number, since it uses as much as digits as its factorization.

770155008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 33.

The square root of 770155008 is about 27751.6667607551. Note that the first 3 decimals coincide. The cubic root of 770155008 is about 916.6271456386.

The spelling of 770155008 in words is "seven hundred seventy million, one hundred fifty-five thousand, eight".