63545346919 has 2 divisors, whose sum is σ = 63545346920. Its totient is φ = 63545346918.

The previous prime is 63545346899. The next prime is 63545346971. The reversal of 63545346919 is 91964354536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63545346919 - 2¹⁷ = 63545215847 is a prime.

It is a super-2 number, since 2×63545346919² (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 63545346919.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63545346989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31772673459 + 31772673460.

It is an arithmetic number, because the mean of its divisors is an integer number (31772673460).

Almost surely, 2^63545346919 is an apocalyptic number.

63545346919 is a deficient number, since it is larger than the sum of its proper divisors (1).

63545346919 is an equidigital number, since it uses as much as digits as its factorization.

63545346919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 55.

The spelling of 63545346919 in words is "sixty-three billion, five hundred forty-five million, three hundred forty-six thousand, nine hundred nineteen".