67149774232677 has 12 divisors (see below), whose sum is σ = 97611915270220. Its totient is φ = 44481379108608.

The previous prime is 67149774232643. The next prime is 67149774232747. The reversal of 67149774232677 is 77623247794176.

67149774232677 is a `hidden beast` number, since 6 + 7 + 1 + 49 + 77 + 423 + 26 + 77 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43501530433761 + 23648243798916 = 6595569^2 + 4862946^2 .

It is not a de Polignac number, because 67149774232677 - 2¹¹ = 67149774230629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67149774230677) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23761419052 + ... + 23761421877.

Almost surely, 2^{67149774232677} is an apocalyptic number.

It is an amenable number.

67149774232677 is a deficient number, since it is larger than the sum of its proper divisors (30462141037543).

67149774232677 is a wasteful number, since it uses less digits than its factorization.

67149774232677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47522841092 (or 47522841089 counting only the distinct ones).

The product of its digits is 1045529856, while the sum is 72.

The spelling of 67149774232677 in words is "sixty-seven trillion, one hundred forty-nine billion, seven hundred seventy-four million, two hundred thirty-two thousand, six hundred seventy-seven".