7621417317628 has 12 divisors (see below), whose sum is σ = 13506309171040. Its totient is φ = 3762471840192.

The previous prime is 7621417317623. The next prime is 7621417317779. The reversal of 7621417317628 is 8267137141267.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7621417317623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12059204301 + ... + 12059204932.

Almost surely, 2^{7621417317628} is an apocalyptic number.

It is an amenable number.

7621417317628 is a deficient number, since it is larger than the sum of its proper divisors (5884891853412).

7621417317628 is a wasteful number, since it uses less digits than its factorization.

7621417317628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24118409316 (or 24118409314 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 55.

The spelling of 7621417317628 in words is "seven trillion, six hundred twenty-one billion, four hundred seventeen million, three hundred seventeen thousand, six hundred twenty-eight".