7620745450 has 24 divisors (see below), whose sum is σ = 14442036588. Its totient is φ = 2990782080.

The previous prime is 7620745427. The next prime is 7620745459. The reversal of 7620745450 is 545470267.

It can be written as a sum of positive squares in 6 ways, for example, as 5585021289 + 2035724161 = 74733^2 + 45119^2 .

It is a super-2 number, since 2×7620745450² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7620745459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1435227 + ... + 1440526.

Almost surely, 2^7620745450 is an apocalyptic number.

7620745450 is a deficient number, since it is larger than the sum of its proper divisors (6821291138).

7620745450 is a wasteful number, since it uses less digits than its factorization.

7620745450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875818 (or 2875813 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 7620745450 is about 87296.8811012169. The cubic root of 7620745450 is about 1967.8824464135.

The spelling of 7620745450 in words is "seven billion, six hundred twenty million, seven hundred forty-five thousand, four hundred fifty".