7829830645 has 16 divisors (see below), whose sum is σ = 11564058240. Its totient is φ = 4956024384.

The previous prime is 7829830643. The next prime is 7829830649. The reversal of 7829830645 is 5460389287.

It is a cyclic number.

It is not a de Polignac number, because 7829830645 - 2¹ = 7829830643 is a prime.

It is a super-2 number, since 2×7829830645² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7829830592 and 7829830601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7829830643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8603755 + ... + 8604664.

It is an arithmetic number, because the mean of its divisors is an integer number (722753640).

Almost surely, 2^7829830645 is an apocalyptic number.

It is an amenable number.

7829830645 is a deficient number, since it is larger than the sum of its proper divisors (3734227595).

7829830645 is a wasteful number, since it uses less digits than its factorization.

7829830645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17208444.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The square root of 7829830645 is about 88486.3302719691. The cubic root of 7829830645 is about 1985.7174678463.

The spelling of 7829830645 in words is "seven billion, eight hundred twenty-nine million, eight hundred thirty thousand, six hundred forty-five".