651255147227 has 2 divisors, whose sum is σ = 651255147228. Its totient is φ = 651255147226.

The previous prime is 651255147223. The next prime is 651255147233. The reversal of 651255147227 is 722741552156.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651255147227 - 2² = 651255147223 is a prime.

It is a super-2 number, since 2×651255147227² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (651255147223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325627573613 + 325627573614.

It is an arithmetic number, because the mean of its divisors is an integer number (325627573614).

Almost surely, 2^651255147227 is an apocalyptic number.

651255147227 is a deficient number, since it is larger than the sum of its proper divisors (1).

651255147227 is an equidigital number, since it uses as much as digits as its factorization.

651255147227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1176000, while the sum is 47.

The spelling of 651255147227 in words is "six hundred fifty-one billion, two hundred fifty-five million, one hundred forty-seven thousand, two hundred twenty-seven".