7644192643 has 4 divisors (see below), whose sum is σ = 7830636408. Its totient is φ = 7457748880.

The previous prime is 7644192617. The next prime is 7644192653. The reversal of 7644192643 is 3462914467.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7644192643 - 2¹³ = 7644184451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7644192593 and 7644192602.

It is not an unprimeable number, because it can be changed into a prime (7644192653) 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 3 ways as a sum of consecutive naturals, for example, 93221821 + ... + 93221902.

It is an arithmetic number, because the mean of its divisors is an integer number (1957659102).

Almost surely, 2^7644192643 is an apocalyptic number.

7644192643 is a deficient number, since it is larger than the sum of its proper divisors (186443765).

7644192643 is a wasteful number, since it uses less digits than its factorization.

7644192643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186443764.

The product of its digits is 870912, while the sum is 46.

The square root of 7644192643 is about 87431.0736694912. The cubic root of 7644192643 is about 1969.8986130580.

The spelling of 7644192643 in words is "seven billion, six hundred forty-four million, one hundred ninety-two thousand, six hundred forty-three".