63081768619 has 2 divisors, whose sum is σ = 63081768620. Its totient is φ = 63081768618.

The previous prime is 63081768601. The next prime is 63081768623. The reversal of 63081768619 is 91686718036.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63081768619 - 2²⁷ = 62947550891 is a prime.

It is a super-2 number, since 2×63081768619² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63081768619.

It is not a weakly prime, because it can be changed into another prime (63081768649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31540884309 + 31540884310.

It is an arithmetic number, because the mean of its divisors is an integer number (31540884310).

Almost surely, 2^63081768619 is an apocalyptic number.

63081768619 is a deficient number, since it is larger than the sum of its proper divisors (1).

63081768619 is an equidigital number, since it uses as much as digits as its factorization.

63081768619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 63081768619 in words is "sixty-three billion, eighty-one million, seven hundred sixty-eight thousand, six hundred nineteen".