770645634361 has 2 divisors, whose sum is σ = 770645634362. Its totient is φ = 770645634360.

The previous prime is 770645634337. The next prime is 770645634377. The reversal of 770645634361 is 163436546077.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 765266292025 + 5379342336 = 874795^2 + 73344^2 .

It is a cyclic number.

It is not a de Polignac number, because 770645634361 - 2¹⁹ = 770645110073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 770645634299 and 770645634308.

It is not a weakly prime, because it can be changed into another prime (770645634061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 385322817180 + 385322817181.

It is an arithmetic number, because the mean of its divisors is an integer number (385322817181).

Almost surely, 2^770645634361 is an apocalyptic number.

It is an amenable number.

770645634361 is a deficient number, since it is larger than the sum of its proper divisors (1).

770645634361 is an equidigital number, since it uses as much as digits as its factorization.

770645634361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 770645634361 in words is "seven hundred seventy billion, six hundred forty-five million, six hundred thirty-four thousand, three hundred sixty-one".