4981311647 has 16 divisors (see below), whose sum is σ = 5422330368. Its totient is φ = 4548653280.

The previous prime is 4981311631. The next prime is 4981311691. The reversal of 4981311647 is 7461131894.

It is a cyclic number.

It is not a de Polignac number, because 4981311647 - 2⁴ = 4981311631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4981311598 and 4981311607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4981311047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2064872 + ... + 2067282.

It is an arithmetic number, because the mean of its divisors is an integer number (338895648).

Almost surely, 2^4981311647 is an apocalyptic number.

4981311647 is a deficient number, since it is larger than the sum of its proper divisors (441018721).

4981311647 is a wasteful number, since it uses less digits than its factorization.

4981311647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4070.

The product of its digits is 145152, while the sum is 44.

The square root of 4981311647 is about 70578.4077958691. The cubic root of 4981311647 is about 1707.8428445800.

The spelling of 4981311647 in words is "four billion, nine hundred eighty-one million, three hundred eleven thousand, six hundred forty-seven".