695128727604961 has 32 divisors (see below), whose sum is σ = 823486906438560. Its totient is φ = 580585637904384.

The previous prime is 695128727604953. The next prime is 695128727604979. The reversal of 695128727604961 is 169406727821596.

695128727604961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 76604068140625 + 618524659464336 = 8752375^2 + 24870156^2 .

It is not a de Polignac number, because 695128727604961 - 2³ = 695128727604953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (695128727604901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231256360 + ... + 234242953.

It is an arithmetic number, because the mean of its divisors is an integer number (25733965826205).

Almost surely, 2^{695128727604961} is an apocalyptic number.

It is an amenable number.

695128727604961 is a deficient number, since it is larger than the sum of its proper divisors (128358178833599).

695128727604961 is a wasteful number, since it uses less digits than its factorization.

695128727604961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465499605.

The product of its (nonzero) digits is 548674560, while the sum is 73.

The spelling of 695128727604961 in words is "six hundred ninety-five trillion, one hundred twenty-eight billion, seven hundred twenty-seven million, six hundred four thousand, nine hundred sixty-one".