770109798481 has 27 divisors (see below), whose sum is σ = 794911101201. Its totient is φ = 746079600384.

The previous prime is 770109798449. The next prime is 770109798569. The reversal of 770109798481 is 184897901077.

The square root of 770109798481 is 877559.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 17525788225 + 752584010256 = 132385^2 + 867516^2 .

It is not a de Polignac number, because 770109798481 - 2⁵ = 770109798449 is a prime.

It is a super-2 number, since 2×770109798481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (770109798421) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7065227455 + ... + 7065227563.

Almost surely, 2^770109798481 is an apocalyptic number.

770109798481 is the 877559-th square number.

770109798481 is the 438780-th centered octagonal number.

It is an amenable number.

770109798481 is a deficient number, since it is larger than the sum of its proper divisors (24801302720).

770109798481 is an frugal number, since it uses more digits than its factorization.

770109798481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 7112448, while the sum is 61.

The spelling of 770109798481 in words is "seven hundred seventy billion, one hundred nine million, seven hundred ninety-eight thousand, four hundred eighty-one".