4345651643 has 2 divisors, whose sum is σ = 4345651644. Its totient is φ = 4345651642.

The previous prime is 4345651637. The next prime is 4345651663. The reversal of 4345651643 is 3461565434.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4345651643 - 2¹² = 4345647547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4345651643.

It is not a weakly prime, because it can be changed into another prime (4345651663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2172825821 + 2172825822.

It is an arithmetic number, because the mean of its divisors is an integer number (2172825822).

Almost surely, 2^4345651643 is an apocalyptic number.

4345651643 is a deficient number, since it is larger than the sum of its proper divisors (1).

4345651643 is an equidigital number, since it uses as much as digits as its factorization.

4345651643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 41.

The square root of 4345651643 is about 65921.5567398101. The cubic root of 4345651643 is about 1631.8677879076.

The spelling of 4345651643 in words is "four billion, three hundred forty-five million, six hundred fifty-one thousand, six hundred forty-three".