4645623511 has 2 divisors, whose sum is σ = 4645623512. Its totient is φ = 4645623510.

The previous prime is 4645623509. The next prime is 4645623517. The reversal of 4645623511 is 1153265464.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4645623511 - 2¹ = 4645623509 is a prime.

Together with 4645623509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4645623517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2322811755 + 2322811756.

It is an arithmetic number, because the mean of its divisors is an integer number (2322811756).

Almost surely, 2^4645623511 is an apocalyptic number.

4645623511 is a deficient number, since it is larger than the sum of its proper divisors (1).

4645623511 is an equidigital number, since it uses as much as digits as its factorization.

4645623511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The square root of 4645623511 is about 68158.8109564714. The cubic root of 4645623511 is about 1668.5837265146.

Adding to 4645623511 its reverse (1153265464), we get a palindrome (5798888975).

The spelling of 4645623511 in words is "four billion, six hundred forty-five million, six hundred twenty-three thousand, five hundred eleven".