4728019881 has 48 divisors (see below), whose sum is σ = 6960113664. Its totient is φ = 2853107712.

The previous prime is 4728019841. The next prime is 4728019927. The reversal of 4728019881 is 1889108274.

It is not a de Polignac number, because 4728019881 - 2⁹ = 4728019369 is a prime.

It is a super-2 number, since 2×4728019881² = 44708343990262508322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4728019881.

It is not an unprimeable number, because it can be changed into a prime (4728019841) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6245355 + ... + 6246111.

It is an arithmetic number, because the mean of its divisors is an integer number (145002368).

Almost surely, 2^4728019881 is an apocalyptic number.

It is an amenable number.

4728019881 is a deficient number, since it is larger than the sum of its proper divisors (2232093783).

4728019881 is a wasteful number, since it uses less digits than its factorization.

4728019881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 48.

The square root of 4728019881 is about 68760.5983176412. The cubic root of 4728019881 is about 1678.3908298430.

It can be divided in two parts, 47280 and 19881, that added together give a triangular number (67161 = T₃₆₆).

The spelling of 4728019881 in words is "four billion, seven hundred twenty-eight million, nineteen thousand, eight hundred eighty-one".