7620986650 has 12 divisors (see below), whose sum is σ = 14175035262. Its totient is φ = 3048394640.

The previous prime is 7620986641. The next prime is 7620986657. The reversal of 7620986650 is 566890267.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5043698361 + 2577288289 = 71019^2 + 50767^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7620986594 and 7620986603.

It is not an unprimeable number, because it can be changed into a prime (7620986657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 76209817 + ... + 76209916.

Almost surely, 2^7620986650 is an apocalyptic number.

7620986650 is a deficient number, since it is larger than the sum of its proper divisors (6554048612).

7620986650 is a wasteful number, since it uses less digits than its factorization.

7620986650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152419745 (or 152419740 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 49.

The square root of 7620986650 is about 87298.2625829403. The cubic root of 7620986650 is about 1967.9032076475.

The spelling of 7620986650 in words is "seven billion, six hundred twenty million, nine hundred eighty-six thousand, six hundred fifty".