7945824641 has 8 divisors (see below), whose sum is σ = 8237696544. Its totient is φ = 7658622880.

The previous prime is 7945824577. The next prime is 7945824659. The reversal of 7945824641 is 1464285497.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7945824641 - 2⁶ = 7945824577 is a prime.

It is a super-2 number, since 2×7945824641² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7945824641.

It is not an unprimeable number, because it can be changed into a prime (7945874641) 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 7 ways as a sum of consecutive naturals, for example, 1164071 + ... + 1170876.

It is an arithmetic number, because the mean of its divisors is an integer number (1029712068).

Almost surely, 2^7945824641 is an apocalyptic number.

It is an amenable number.

7945824641 is a deficient number, since it is larger than the sum of its proper divisors (291871903).

7945824641 is a wasteful number, since it uses less digits than its factorization.

7945824641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2335071.

The product of its digits is 1935360, while the sum is 50.

The square root of 7945824641 is about 89139.3551749170. The cubic root of 7945824641 is about 1995.4751573698.

The spelling of 7945824641 in words is "seven billion, nine hundred forty-five million, eight hundred twenty-four thousand, six hundred forty-one".