651719541331 has 2 divisors, whose sum is σ = 651719541332. Its totient is φ = 651719541330.

The previous prime is 651719541301. The next prime is 651719541377. The reversal of 651719541331 is 133145917156.

It is an a-pointer prime, because the next prime (651719541377) can be obtained adding 651719541331 to its sum of digits (46).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651719541331 - 2⁹ = 651719540819 is a prime.

It is a super-2 number, since 2×651719541331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (651719541301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325859770665 + 325859770666.

It is an arithmetic number, because the mean of its divisors is an integer number (325859770666).

Almost surely, 2^651719541331 is an apocalyptic number.

651719541331 is a deficient number, since it is larger than the sum of its proper divisors (1).

651719541331 is an equidigital number, since it uses as much as digits as its factorization.

651719541331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 340200, while the sum is 46.

The spelling of 651719541331 in words is "six hundred fifty-one billion, seven hundred nineteen million, five hundred forty-one thousand, three hundred thirty-one".