67367780347 has 4 divisors (see below), whose sum is σ = 76991748976. Its totient is φ = 57743811720.

The previous prime is 67367780341. The next prime is 67367780357. The reversal of 67367780347 is 74308776376.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 67367780347 - 2³¹ = 65220296699 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67367780291 and 67367780300.

It is not an unprimeable number, because it can be changed into a prime (67367780341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4811984304 + ... + 4811984317.

It is an arithmetic number, because the mean of its divisors is an integer number (19247937244).

Almost surely, 2^67367780347 is an apocalyptic number.

67367780347 is a deficient number, since it is larger than the sum of its proper divisors (9623968629).

67367780347 is an equidigital number, since it uses as much as digits as its factorization.

67367780347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9623968628.

The product of its (nonzero) digits is 24893568, while the sum is 58.

The spelling of 67367780347 in words is "sixty-seven billion, three hundred sixty-seven million, seven hundred eighty thousand, three hundred forty-seven".