76621622667 has 4 divisors (see below), whose sum is σ = 102162163560. Its totient is φ = 51081081776.

The previous prime is 76621622621. The next prime is 76621622683. The reversal of 76621622667 is 76622612667.

It is a happy number.

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 76621622667 - 2¹⁴ = 76621606283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76621632667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12770270442 + ... + 12770270447.

It is an arithmetic number, because the mean of its divisors is an integer number (25540540890).

Almost surely, 2^76621622667 is an apocalyptic number.

76621622667 is a deficient number, since it is larger than the sum of its proper divisors (25540540893).

76621622667 is a wasteful number, since it uses less digits than its factorization.

76621622667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25540540892.

The product of its digits is 3048192, while the sum is 51.

The spelling of 76621622667 in words is "seventy-six billion, six hundred twenty-one million, six hundred twenty-two thousand, six hundred sixty-seven".