7421476608821 has 4 divisors (see below), whose sum is σ = 8096156300544. Its totient is φ = 6746796917100.

The previous prime is 7421476608769. The next prime is 7421476608841. The reversal of 7421476608821 is 1288066741247.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7421476608821 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 (7421476608841) 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, 337339845845 + ... + 337339845866.

It is an arithmetic number, because the mean of its divisors is an integer number (2024039075136).

Almost surely, 2^{7421476608821} is an apocalyptic number.

It is an amenable number.

7421476608821 is a deficient number, since it is larger than the sum of its proper divisors (674679691723).

7421476608821 is a wasteful number, since it uses less digits than its factorization.

7421476608821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674679691722.

The product of its (nonzero) digits is 7225344, while the sum is 56.

The spelling of 7421476608821 in words is "seven trillion, four hundred twenty-one billion, four hundred seventy-six million, six hundred eight thousand, eight hundred twenty-one".