651233460257 has 2 divisors, whose sum is σ = 651233460258. Its totient is φ = 651233460256.

The previous prime is 651233460191. The next prime is 651233460277. The reversal of 651233460257 is 752064332156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 590401677376 + 60831782881 = 768376^2 + 246641^2 .

It is a cyclic number.

It is not a de Polignac number, because 651233460257 - 2³⁸ = 376355553313 is a prime.

It is not a weakly prime, because it can be changed into another prime (651233460277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325616730128 + 325616730129.

It is an arithmetic number, because the mean of its divisors is an integer number (325616730129).

Almost surely, 2^651233460257 is an apocalyptic number.

It is an amenable number.

651233460257 is a deficient number, since it is larger than the sum of its proper divisors (1).

651233460257 is an equidigital number, since it uses as much as digits as its factorization.

651233460257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 44.

The spelling of 651233460257 in words is "six hundred fifty-one billion, two hundred thirty-three million, four hundred sixty thousand, two hundred fifty-seven".