773477331073 has 2 divisors, whose sum is σ = 773477331074. Its totient is φ = 773477331072.

The previous prime is 773477331019. The next prime is 773477331157. The reversal of 773477331073 is 370133774377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 681470062144 + 92007268929 = 825512^2 + 303327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-773477331073 is a prime.

It is a super-2 number, since 2×773477331073² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 773477331073.

It is not a weakly prime, because it can be changed into another prime (773477431073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 386738665536 + 386738665537.

It is an arithmetic number, because the mean of its divisors is an integer number (386738665537).

Almost surely, 2^773477331073 is an apocalyptic number.

It is an amenable number.

773477331073 is a deficient number, since it is larger than the sum of its proper divisors (1).

773477331073 is an equidigital number, since it uses as much as digits as its factorization.

773477331073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5445468, while the sum is 52.

The spelling of 773477331073 in words is "seven hundred seventy-three billion, four hundred seventy-seven million, three hundred thirty-one thousand, seventy-three".