67764834067 has 4 divisors (see below), whose sum is σ = 77445524656. Its totient is φ = 58084143480.

The previous prime is 67764834041. The next prime is 67764834101. The reversal of 67764834067 is 76043846776.

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

It is a cyclic number.

It is not a de Polignac number, because 67764834067 - 2¹⁹ = 67764309779 is a prime.

It is a super-2 number, since 2×67764834067² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67764834167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4840345284 + ... + 4840345297.

It is an arithmetic number, because the mean of its divisors is an integer number (19361381164).

Almost surely, 2^67764834067 is an apocalyptic number.

67764834067 is a deficient number, since it is larger than the sum of its proper divisors (9680690589).

67764834067 is an equidigital number, since it uses as much as digits as its factorization.

67764834067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9680690588.

The product of its (nonzero) digits is 28449792, while the sum is 58.

The spelling of 67764834067 in words is "sixty-seven billion, seven hundred sixty-four million, eight hundred thirty-four thousand, sixty-seven".