7629199220 has 18 divisors (see below), whose sum is σ = 16022138706. Its totient is φ = 3051523440.

The previous prime is 7629199211. The next prime is 7629199223. The reversal of 7629199220 is 229919267.

It can be written as a sum of positive squares in only one way, i.e., 6103359376 + 1525839844 = 78124^2 + 39062^2 .

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7629199223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 380855 + ... + 400385.

It is an arithmetic number, because the mean of its divisors is an integer number (890118817).

Almost surely, 2^7629199220 is an apocalyptic number.

It is an amenable number.

7629199220 is an abundant number, since it is smaller than the sum of its proper divisors (8392939486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7629199220 is an frugal number, since it uses more digits than its factorization.

7629199220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39071 (or 19538 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 7629199220 is about 87345.2873370968. The cubic root of 7629199220 is about 1968.6098414776.

The spelling of 7629199220 in words is "seven billion, six hundred twenty-nine million, one hundred ninety-nine thousand, two hundred twenty".