7945013441 has 12 divisors (see below), whose sum is σ = 8529960852. Its totient is φ = 7394165856.

The previous prime is 7945013429. The next prime is 7945013471. The reversal of 7945013441 is 1443105497.

It can be written as a sum of positive squares in 2 ways, for example, as 3412896400 + 4532117041 = 58420^2 + 67321^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7945013441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7945013395 and 7945013404.

It is not an unprimeable number, because it can be changed into a prime (7945013471) 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, 183386 + ... + 222531.

It is an arithmetic number, because the mean of its divisors is an integer number (710830071).

Almost surely, 2^7945013441 is an apocalyptic number.

It is an amenable number.

7945013441 is a deficient number, since it is larger than the sum of its proper divisors (584947411).

7945013441 is a wasteful number, since it uses less digits than its factorization.

7945013441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406000 (or 405977 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 7945013441 is about 89134.8048800243. The cubic root of 7945013441 is about 1995.4072481382.

The spelling of 7945013441 in words is "seven billion, nine hundred forty-five million, thirteen thousand, four hundred forty-one".