7720628371051 has 16 divisors (see below), whose sum is σ = 8004620620800. Its totient is φ = 7437824631328.

The previous prime is 7720628371033. The next prime is 7720628371097. The reversal of 7720628371051 is 1501738260277.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 7720628371051 - 2¹³ = 7720628362859 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7720628370986 and 7720628371004.

It is not an unprimeable number, because it can be changed into a prime (7720628371031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114469800 + ... + 114537226.

It is an arithmetic number, because the mean of its divisors is an integer number (500288788800).

Almost surely, 2^{7720628371051} is an apocalyptic number.

7720628371051 is a deficient number, since it is larger than the sum of its proper divisors (283992249749).

7720628371051 is a wasteful number, since it uses less digits than its factorization.

7720628371051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76178.

The product of its (nonzero) digits is 987840, while the sum is 49.

The spelling of 7720628371051 in words is "seven trillion, seven hundred twenty billion, six hundred twenty-eight million, three hundred seventy-one thousand, fifty-one".