63509334677 has 2 divisors, whose sum is σ = 63509334678. Its totient is φ = 63509334676.

The previous prime is 63509334661. The next prime is 63509334731. The reversal of 63509334677 is 77643390536.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43037162116 + 20472172561 = 207454^2 + 143081^2 .

It is a cyclic number.

It is not a de Polignac number, because 63509334677 - 2⁴ = 63509334661 is a prime.

It is a super-2 number, since 2×63509334677² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63509334617) 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, 31754667338 + 31754667339.

It is an arithmetic number, because the mean of its divisors is an integer number (31754667339).

Almost surely, 2^63509334677 is an apocalyptic number.

It is an amenable number.

63509334677 is a deficient number, since it is larger than the sum of its proper divisors (1).

63509334677 is an equidigital number, since it uses as much as digits as its factorization.

63509334677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8573040, while the sum is 53.

The spelling of 63509334677 in words is "sixty-three billion, five hundred nine million, three hundred thirty-four thousand, six hundred seventy-seven".