4640972569 has 2 divisors, whose sum is σ = 4640972570. Its totient is φ = 4640972568.

The previous prime is 4640972533. The next prime is 4640972593. The reversal of 4640972569 is 9652790464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4111374400 + 529598169 = 64120^2 + 23013^2 .

It is a cyclic number.

It is not a de Polignac number, because 4640972569 - 2⁹ = 4640972057 is a prime.

It is a super-2 number, since 2×4640972569² = 43077252772420919522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4640972519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320486284 + 2320486285.

It is an arithmetic number, because the mean of its divisors is an integer number (2320486285).

Almost surely, 2^4640972569 is an apocalyptic number.

It is an amenable number.

4640972569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640972569 is an equidigital number, since it uses as much as digits as its factorization.

4640972569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The square root of 4640972569 is about 68124.6839919276. The cubic root of 4640972569 is about 1668.0267092597.

The spelling of 4640972569 in words is "four billion, six hundred forty million, nine hundred seventy-two thousand, five hundred sixty-nine".