8645941537 has 2 divisors, whose sum is σ = 8645941538. Its totient is φ = 8645941536.

The previous prime is 8645941531. The next prime is 8645941547. The reversal of 8645941537 is 7351495468.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4860738961 + 3785202576 = 69719^2 + 61524^2 .

It is a cyclic number.

It is not a de Polignac number, because 8645941537 - 2³ = 8645941529 is a prime.

It is a super-2 number, since 2×8645941537² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8645941531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4322970768 + 4322970769.

It is an arithmetic number, because the mean of its divisors is an integer number (4322970769).

Almost surely, 2^8645941537 is an apocalyptic number.

It is an amenable number.

8645941537 is a deficient number, since it is larger than the sum of its proper divisors (1).

8645941537 is an equidigital number, since it uses as much as digits as its factorization.

8645941537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3628800, while the sum is 52.

The square root of 8645941537 is about 92983.5551966045. Note that the first 3 decimals coincide. The cubic root of 8645941537 is about 2052.4413932961.

The spelling of 8645941537 in words is "eight billion, six hundred forty-five million, nine hundred forty-one thousand, five hundred thirty-seven".