4888681645 has 8 divisors (see below), whose sum is σ = 5881501080. Its totient is φ = 3900889920.

The previous prime is 4888681639. The next prime is 4888681663. The reversal of 4888681645 is 5461868884.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 162256644 + 4726425001 = 12738^2 + 68749^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-4888681645 is a prime.

It is a super-3 number, since 3×4888681645³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4888681645.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254786 + ... + 1258675.

It is an arithmetic number, because the mean of its divisors is an integer number (735187635).

Almost surely, 2^4888681645 is an apocalyptic number.

It is an amenable number.

4888681645 is a deficient number, since it is larger than the sum of its proper divisors (992819435).

4888681645 is a wasteful number, since it uses less digits than its factorization.

4888681645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513855.

The product of its digits is 11796480, while the sum is 58.

The square root of 4888681645 is about 69919.1078675922. The cubic root of 4888681645 is about 1697.1904741240.

The spelling of 4888681645 in words is "four billion, eight hundred eighty-eight million, six hundred eighty-one thousand, six hundred forty-five".