4981731081 has 4 divisors (see below), whose sum is σ = 6642308112. Its totient is φ = 3321154052.

The previous prime is 4981731061. The next prime is 4981731089. The reversal of 4981731081 is 1801371894.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4981731081 - 2²⁹ = 4444860169 is a prime.

It is a super-2 number, since 2×4981731081² = 49635289126802857122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4981731089) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 830288511 + ... + 830288516.

It is an arithmetic number, because the mean of its divisors is an integer number (1660577028).

Almost surely, 2^4981731081 is an apocalyptic number.

It is an amenable number.

4981731081 is a deficient number, since it is larger than the sum of its proper divisors (1660577031).

4981731081 is a wasteful number, since it uses less digits than its factorization.

4981731081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660577030.

The product of its (nonzero) digits is 48384, while the sum is 42.

The square root of 4981731081 is about 70581.3791378434. The cubic root of 4981731081 is about 1707.8907775544.

The spelling of 4981731081 in words is "four billion, nine hundred eighty-one million, seven hundred thirty-one thousand, eighty-one".