4635685851 has 32 divisors (see below), whose sum is σ = 6622026048. Its totient is φ = 2874408960.

The previous prime is 4635685823. The next prime is 4635685889. The reversal of 4635685851 is 1585865364.

It is a happy number.

It is not a de Polignac number, because 4635685851 - 2¹⁰ = 4635684827 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 4635685794 and 4635685803.

It is not an unprimeable number, because it can be changed into a prime (4635675851) 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 in 31 ways as a sum of consecutive naturals, for example, 1682491 + ... + 1685243.

It is an arithmetic number, because the mean of its divisors is an integer number (206938314).

Almost surely, 2^4635685851 is an apocalyptic number.

4635685851 is a deficient number, since it is larger than the sum of its proper divisors (1986340197).

4635685851 is a wasteful number, since it uses less digits than its factorization.

4635685851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151.

The product of its digits is 3456000, while the sum is 51.

The square root of 4635685851 is about 68085.8711554754. The cubic root of 4635685851 is about 1667.3930965649.

The spelling of 4635685851 in words is "four billion, six hundred thirty-five million, six hundred eighty-five thousand, eight hundred fifty-one".