4961645888 has 14 divisors (see below), whose sum is σ = 9845766186. Its totient is φ = 2480822912.

The previous prime is 4961645839. The next prime is 4961645911. The reversal of 4961645888 is 8885461694.

It can be written as a sum of positive squares in only one way, i.e., 4946027584 + 15618304 = 70328^2 + 3952^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38762795 + ... + 38762922.

Almost surely, 2^4961645888 is an apocalyptic number.

It is an amenable number.

4961645888 is a deficient number, since it is larger than the sum of its proper divisors (4884120298).

4961645888 is an equidigital number, since it uses as much as digits as its factorization.

4961645888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77525729 (or 77525719 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 59.

The square root of 4961645888 is about 70438.9514970233. The cubic root of 4961645888 is about 1705.5924117926.

The spelling of 4961645888 in words is "four billion, nine hundred sixty-one million, six hundred forty-five thousand, eight hundred eighty-eight".