4172640569 has 2 divisors, whose sum is σ = 4172640570. Its totient is φ = 4172640568.

The previous prime is 4172640503. The next prime is 4172640581. The reversal of 4172640569 is 9650462714.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3059417344 + 1113223225 = 55312^2 + 33365^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4172640569 is a prime.

It is a super-2 number, since 2×4172640569² = 34821858636129287522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4172640469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2086320284 + 2086320285.

It is an arithmetic number, because the mean of its divisors is an integer number (2086320285).

Almost surely, 2^4172640569 is an apocalyptic number.

It is an amenable number.

4172640569 is a deficient number, since it is larger than the sum of its proper divisors (1).

4172640569 is an equidigital number, since it uses as much as digits as its factorization.

4172640569 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 44.

The square root of 4172640569 is about 64595.9795111120. The cubic root of 4172640569 is about 1609.9176390105.

The spelling of 4172640569 in words is "four billion, one hundred seventy-two million, six hundred forty thousand, five hundred sixty-nine".