7945009443 has 32 divisors (see below), whose sum is σ = 13679884800. Its totient is φ = 4463049888.

The previous prime is 7945009433. The next prime is 7945009451. The reversal of 7945009443 is 3449005497.

It is a happy number.

7945009443 is a `hidden beast` number, since 79 + 450 + 0 + 94 + 43 = 666.

It is not a de Polignac number, because 7945009443 - 2⁴ = 7945009427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7945009433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345096 + ... + 367397.

It is an arithmetic number, because the mean of its divisors is an integer number (427496400).

Almost surely, 2^7945009443 is an apocalyptic number.

7945009443 is a deficient number, since it is larger than the sum of its proper divisors (5734875357).

7945009443 is a wasteful number, since it uses less digits than its factorization.

7945009443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712568 (or 712562 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 7945009443 is about 89134.7824533162. The cubic root of 7945009443 is about 1995.4069134361.

The spelling of 7945009443 in words is "seven billion, nine hundred forty-five million, nine thousand, four hundred forty-three".