766028272073 has 2 divisors, whose sum is σ = 766028272074. Its totient is φ = 766028272072.

The previous prime is 766028272069. The next prime is 766028272091. The reversal of 766028272073 is 370272820667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 490373871289 + 275654400784 = 700267^2 + 525028^2 .

It is a cyclic number.

It is not a de Polignac number, because 766028272073 - 2² = 766028272069 is a prime.

It is a super-2 number, since 2×766028272073² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (766028272043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 383014136036 + 383014136037.

It is an arithmetic number, because the mean of its divisors is an integer number (383014136037).

Almost surely, 2^766028272073 is an apocalyptic number.

It is an amenable number.

766028272073 is a deficient number, since it is larger than the sum of its proper divisors (1).

766028272073 is an equidigital number, since it uses as much as digits as its factorization.

766028272073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 50.

The spelling of 766028272073 in words is "seven hundred sixty-six billion, twenty-eight million, two hundred seventy-two thousand, seventy-three".