651353453617 has 2 divisors, whose sum is σ = 651353453618. Its totient is φ = 651353453616.

The previous prime is 651353453603. The next prime is 651353453657. The reversal of 651353453617 is 716354353156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 525495957921 + 125857495696 = 724911^2 + 354764^2 .

It is a cyclic number.

It is not a de Polignac number, because 651353453617 - 2⁷ = 651353453489 is a prime.

It is a super-2 number, since 2×651353453617² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (651353453657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325676726808 + 325676726809.

It is an arithmetic number, because the mean of its divisors is an integer number (325676726809).

Almost surely, 2^651353453617 is an apocalyptic number.

It is an amenable number.

651353453617 is a deficient number, since it is larger than the sum of its proper divisors (1).

651353453617 is an equidigital number, since it uses as much as digits as its factorization.

651353453617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402000, while the sum is 49.

The spelling of 651353453617 in words is "six hundred fifty-one billion, three hundred fifty-three million, four hundred fifty-three thousand, six hundred seventeen".