7620745448 has 32 divisors (see below), whose sum is σ = 15137425800. Its totient is φ = 3584335872.

The previous prime is 7620745427. The next prime is 7620745459. The reversal of 7620745448 is 8445470267.

It can be written as a sum of positive squares in 4 ways, for example, as 7052304484 + 568440964 = 83978^2 + 23842^2 .

It is a super-2 number, since 2×7620745448² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 262136 + ... + 289752.

Almost surely, 2^7620745448 is an apocalyptic number.

It is an amenable number.

7620745448 is a deficient number, since it is larger than the sum of its proper divisors (7516680352).

7620745448 is a wasteful number, since it uses less digits than its factorization.

7620745448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29669 (or 29665 counting only the distinct ones).

The product of its (nonzero) digits is 1505280, while the sum is 47.

The square root of 7620745448 is about 87296.8810897617. The cubic root of 7620745448 is about 1967.8824462414.

The spelling of 7620745448 in words is "seven billion, six hundred twenty million, seven hundred forty-five thousand, four hundred forty-eight".