76624644642667 has 4 divisors (see below), whose sum is σ = 83590521428376. Its totient is φ = 69658767856960.

The previous prime is 76624644642649. The next prime is 76624644642673.

It is a happy number.

76624644642667 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 76624644642667 - 2²⁷ = 76624510424939 is a prime.

It is a super-2 number, since 2×76624644642667² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76624644642596 and 76624644642605.

It is not an unprimeable number, because it can be changed into a prime (76624644642677) 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 3 ways as a sum of consecutive naturals, for example, 3482938392838 + ... + 3482938392859.

It is an arithmetic number, because the mean of its divisors is an integer number (20897630357094).

Almost surely, 2^{76624644642667} is an apocalyptic number.

76624644642667 is a deficient number, since it is larger than the sum of its proper divisors (6965876785709).

76624644642667 is a wasteful number, since it uses less digits than its factorization.

76624644642667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965876785708.

The product of its digits is 2341011456, while the sum is 70.

The spelling of 76624644642667 in words is "seventy-six trillion, six hundred twenty-four billion, six hundred forty-four million, six hundred forty-two thousand, six hundred sixty-seven".