3065428781 has 2 divisors, whose sum is σ = 3065428782. Its totient is φ = 3065428780.

The previous prime is 3065428777. The next prime is 3065428813. The reversal of 3065428781 is 1878245603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2865460900 + 199967881 = 53530^2 + 14141^2 .

It is a cyclic number.

It is not a de Polignac number, because 3065428781 - 2² = 3065428777 is a prime.

It is a super-2 number, since 2×3065428781² = 18793707222766291922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3065428741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1532714390 + 1532714391.

It is an arithmetic number, because the mean of its divisors is an integer number (1532714391).

Almost surely, 2^3065428781 is an apocalyptic number.

It is an amenable number.

3065428781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3065428781 is an equidigital number, since it uses as much as digits as its factorization.

3065428781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 322560, while the sum is 44.

The square root of 3065428781 is about 55366.3144971742. The cubic root of 3065428781 is about 1452.6592154560.

The spelling of 3065428781 in words is "three billion, sixty-five million, four hundred twenty-eight thousand, seven hundred eighty-one".