7945824645 has 48 divisors (see below), whose sum is σ = 15032347200. Its totient is φ = 3850594560.

The previous prime is 7945824577. The next prime is 7945824659. The reversal of 7945824645 is 5464285497.

7945824645 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7945824645 - 2⁸ = 7945824389 is a prime.

It is a super-2 number, since 2×7945824645² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7945824591 and 7945824600.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1863526 + ... + 1867784.

It is an arithmetic number, because the mean of its divisors is an integer number (313173900).

Almost surely, 2^7945824645 is an apocalyptic number.

It is an amenable number.

7945824645 is a deficient number, since it is larger than the sum of its proper divisors (7086522555).

7945824645 is a wasteful number, since it uses less digits than its factorization.

7945824645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8050 (or 8047 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The square root of 7945824645 is about 89139.3551973538. The cubic root of 7945824645 is about 1995.4751577046.

The spelling of 7945824645 in words is "seven billion, nine hundred forty-five million, eight hundred twenty-four thousand, six hundred forty-five".