651041773 has 2 divisors, whose sum is σ = 651041774. Its totient is φ = 651041772.

The previous prime is 651041767. The next prime is 651041779. The reversal of 651041773 is 377140156.

It is a balanced prime because it is at equal distance from previous prime (651041767) and next prime (651041779).

It can be written as a sum of positive squares in only one way, i.e., 476854569 + 174187204 = 21837^2 + 13198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-651041773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651041779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325520886 + 325520887.

It is an arithmetic number, because the mean of its divisors is an integer number (325520887).

Almost surely, 2^651041773 is an apocalyptic number.

It is an amenable number.

651041773 is a deficient number, since it is larger than the sum of its proper divisors (1).

651041773 is an equidigital number, since it uses as much as digits as its factorization.

651041773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 651041773 is about 25515.5202376906. The cubic root of 651041773 is about 866.7016401238.

The spelling of 651041773 in words is "six hundred fifty-one million, forty-one thousand, seven hundred seventy-three".