4685681531 has 2 divisors, whose sum is σ = 4685681532. Its totient is φ = 4685681530.

The previous prime is 4685681477. The next prime is 4685681537. The reversal of 4685681531 is 1351865864.

4685681531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4685681531 is a prime.

It is a super-2 number, since 2×4685681531² = 43911222819909007922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4685681537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2342840765 + 2342840766.

It is an arithmetic number, because the mean of its divisors is an integer number (2342840766).

Almost surely, 2^4685681531 is an apocalyptic number.

4685681531 is a deficient number, since it is larger than the sum of its proper divisors (1).

4685681531 is an equidigital number, since it uses as much as digits as its factorization.

4685681531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691200, while the sum is 47.

The square root of 4685681531 is about 68452.0381800279. The cubic root of 4685681531 is about 1673.3659306685.

The spelling of 4685681531 in words is "four billion, six hundred eighty-five million, six hundred eighty-one thousand, five hundred thirty-one".