651150617549 has 2 divisors, whose sum is σ = 651150617550. Its totient is φ = 651150617548.

The previous prime is 651150617477. The next prime is 651150617627. The reversal of 651150617549 is 945716051156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493527325225 + 157623292324 = 702515^2 + 397018^2 .

It is a cyclic number.

It is not a de Polignac number, because 651150617549 - 2¹² = 651150613453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 651150617497 and 651150617506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651150647549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325575308774 + 325575308775.

It is an arithmetic number, because the mean of its divisors is an integer number (325575308775).

Almost surely, 2^651150617549 is an apocalyptic number.

It is an amenable number.

651150617549 is a deficient number, since it is larger than the sum of its proper divisors (1).

651150617549 is an equidigital number, since it uses as much as digits as its factorization.

651150617549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134000, while the sum is 50.

The spelling of 651150617549 in words is "six hundred fifty-one billion, one hundred fifty million, six hundred seventeen thousand, five hundred forty-nine".