67409381794 has 8 divisors (see below), whose sum is σ = 101117634588. Its totient is φ = 33703503600.

The previous prime is 67409381761. The next prime is 67409381803. The reversal of 67409381794 is 49718390476.

It can be written as a sum of positive squares in 2 ways, for example, as 43937609769 + 23471772025 = 209613^2 + 153205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 520897 + ... + 637300.

Almost surely, 2^67409381794 is an apocalyptic number.

67409381794 is a deficient number, since it is larger than the sum of its proper divisors (33708252794).

67409381794 is a wasteful number, since it uses less digits than its factorization.

67409381794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187300.

The product of its (nonzero) digits is 9144576, while the sum is 58.

The spelling of 67409381794 in words is "sixty-seven billion, four hundred nine million, three hundred eighty-one thousand, seven hundred ninety-four".