65673074477 has 2 divisors, whose sum is σ = 65673074478. Its totient is φ = 65673074476.

The previous prime is 65673074429. The next prime is 65673074507. The reversal of 65673074477 is 77447037656.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59136998761 + 6536075716 = 243181^2 + 80846^2 .

It is a cyclic number.

It is not a de Polignac number, because 65673074477 - 2²⁰ = 65672025901 is a prime.

It is a super-2 number, since 2×65673074477² (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 (65673074407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32836537238 + 32836537239.

It is an arithmetic number, because the mean of its divisors is an integer number (32836537239).

Almost surely, 2^65673074477 is an apocalyptic number.

It is an amenable number.

65673074477 is a deficient number, since it is larger than the sum of its proper divisors (1).

65673074477 is an equidigital number, since it uses as much as digits as its factorization.

65673074477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20744640, while the sum is 56.

The spelling of 65673074477 in words is "sixty-five billion, six hundred seventy-three million, seventy-four thousand, four hundred seventy-seven".