73640622667 has 8 divisors (see below), whose sum is σ = 76181035392. Its totient is φ = 71110516800.

The previous prime is 73640622631. The next prime is 73640622697. The reversal of 73640622667 is 76622604637.

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

It is a cyclic number.

It is not a de Polignac number, because 73640622667 - 2¹⁹ = 73640098379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73640622667.

It is not an unprimeable number, because it can be changed into a prime (73640622607) 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 7 ways as a sum of consecutive naturals, for example, 2562178 + ... + 2590759.

It is an arithmetic number, because the mean of its divisors is an integer number (9522629424).

Almost surely, 2^73640622667 is an apocalyptic number.

73640622667 is a deficient number, since it is larger than the sum of its proper divisors (2540412725).

73640622667 is a wasteful number, since it uses less digits than its factorization.

73640622667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153429.

The product of its (nonzero) digits is 3048192, while the sum is 49.

The spelling of 73640622667 in words is "seventy-three billion, six hundred forty million, six hundred twenty-two thousand, six hundred sixty-seven".