78376067387 has 4 divisors (see below), whose sum is σ = 78377936280. Its totient is φ = 78374198496.

The previous prime is 78376067303. The next prime is 78376067459.

78376067387 is nontrivially palindromic in base 10.

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 78376067387 - 2⁸ = 78376067131 is a prime.

It is a super-2 number, since 2×78376067387² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78376063387) 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, 870062 + ... + 955907.

It is an arithmetic number, because the mean of its divisors is an integer number (19594484070).

Almost surely, 2^78376067387 is an apocalyptic number.

78376067387 is a deficient number, since it is larger than the sum of its proper divisors (1868893).

78376067387 is a wasteful number, since it uses less digits than its factorization.

78376067387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868892.

The product of its (nonzero) digits is 49787136, while the sum is 62.

The spelling of 78376067387 in words is "seventy-eight billion, three hundred seventy-six million, sixty-seven thousand, three hundred eighty-seven".