7231664489 has 16 divisors (see below), whose sum is σ = 8607168000. Its totient is φ = 5944634304.

The previous prime is 7231664477. The next prime is 7231664491. The reversal of 7231664489 is 9844661327.

It is not a de Polignac number, because 7231664489 - 2¹⁶ = 7231598953 is a prime.

It is a super-2 number, since 2×7231664489² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7231664389) 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 15 ways as a sum of consecutive naturals, for example, 89297 + ... + 149790.

It is an arithmetic number, because the mean of its divisors is an integer number (537948000).

Almost surely, 2^7231664489 is an apocalyptic number.

It is an amenable number.

7231664489 is a deficient number, since it is larger than the sum of its proper divisors (1375503511).

7231664489 is a wasteful number, since it uses less digits than its factorization.

7231664489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239272.

The product of its digits is 1741824, while the sum is 50.

The square root of 7231664489 is about 85039.1938402523. The cubic root of 7231664489 is about 1933.8053451923.

The spelling of 7231664489 in words is "seven billion, two hundred thirty-one million, six hundred sixty-four thousand, four hundred eighty-nine".