67776453243 has 16 divisors (see below), whose sum is σ = 101823782400. Its totient is φ = 44547902280.

The previous prime is 67776453223. The next prime is 67776453263. The reversal of 67776453243 is 34235467776.

67776453243 is a `hidden beast` number, since 6 + 7 + 7 + 7 + 64 + 532 + 43 = 666.

It is an interprime number because it is at equal distance from previous prime (67776453223) and next prime (67776453263).

It is not a de Polignac number, because 67776453243 - 2²⁰ = 67775404667 is a prime.

It is a super-3 number, since 3×67776453243³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 67776453243.

It is not an unprimeable number, because it can be changed into a prime (67776453223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17675823 + ... + 17679656.

It is an arithmetic number, because the mean of its divisors is an integer number (6363986400).

Almost surely, 2^67776453243 is an apocalyptic number.

67776453243 is a deficient number, since it is larger than the sum of its proper divisors (34047329157).

67776453243 is a wasteful number, since it uses less digits than its factorization.

67776453243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35355559 (or 35355553 counting only the distinct ones).

The product of its digits is 17781120, while the sum is 54.

The spelling of 67776453243 in words is "sixty-seven billion, seven hundred seventy-six million, four hundred fifty-three thousand, two hundred forty-three".