5386721890 has 16 divisors (see below), whose sum is σ = 10577563200. Its totient is φ = 1958807920.

The previous prime is 5386721807. The next prime is 5386721897. The reversal of 5386721890 is 981276835.

It is not an unprimeable number, because it can be changed into a prime (5386721897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24484990 + ... + 24485209.

It is an arithmetic number, because the mean of its divisors is an integer number (661097700).

Almost surely, 2^5386721890 is an apocalyptic number.

5386721890 is a deficient number, since it is larger than the sum of its proper divisors (5190841310).

5386721890 is a wasteful number, since it uses less digits than its factorization.

5386721890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48970217.

The product of its (nonzero) digits is 725760, while the sum is 49.

The square root of 5386721890 is about 73394.2905817612. The cubic root of 5386721890 is about 1752.9714838370.

It can be divided in two parts, 53867 and 21890, that added together give a palindrome (75757).

The spelling of 5386721890 in words is "five billion, three hundred eighty-six million, seven hundred twenty-one thousand, eight hundred ninety".