7868669621 has 8 divisors (see below), whose sum is σ = 7884864000. Its totient is φ = 7852490800.

The previous prime is 7868669597. The next prime is 7868669647. The reversal of 7868669621 is 1269668687.

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 7868669621 - 2¹⁰ = 7868668597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7868669651) 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, 1679360 + ... + 1684038.

It is an arithmetic number, because the mean of its divisors is an integer number (985608000).

Almost surely, 2^7868669621 is an apocalyptic number.

It is an amenable number.

7868669621 is a deficient number, since it is larger than the sum of its proper divisors (16194379).

7868669621 is a wasteful number, since it uses less digits than its factorization.

7868669621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7779.

The product of its digits is 10450944, while the sum is 59.

The square root of 7868669621 is about 88705.5219307118. The cubic root of 7868669621 is about 1988.9953617758.

The spelling of 7868669621 in words is "seven billion, eight hundred sixty-eight million, six hundred sixty-nine thousand, six hundred twenty-one".