7621790447228 has 24 divisors (see below), whose sum is σ = 13355162413824. Its totient is φ = 3806030170800.

The previous prime is 7621790447209. The next prime is 7621790447251. The reversal of 7621790447228 is 8227440971267.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112231163 + ... + 112299053.

It is an arithmetic number, because the mean of its divisors is an integer number (556465100576).

Almost surely, 2^{7621790447228} is an apocalyptic number.

It is an amenable number.

7621790447228 is a deficient number, since it is larger than the sum of its proper divisors (5733371966596).

7621790447228 is a wasteful number, since it uses less digits than its factorization.

7621790447228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103313 (or 103311 counting only the distinct ones).

The product of its (nonzero) digits is 18966528, while the sum is 59.

The spelling of 7621790447228 in words is "seven trillion, six hundred twenty-one billion, seven hundred ninety million, four hundred forty-seven thousand, two hundred twenty-eight".