7164731481 has 16 divisors (see below), whose sum is σ = 10257383808. Its totient is φ = 4432198400.

The previous prime is 7164731479. The next prime is 7164731491. The reversal of 7164731481 is 1841374617.

It is a cyclic number.

It is not a de Polignac number, because 7164731481 - 2¹ = 7164731479 is a prime.

It is a super-2 number, since 2×7164731481² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7164731461) 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, 985710 + ... + 992951.

It is an arithmetic number, because the mean of its divisors is an integer number (641086488).

Almost surely, 2^7164731481 is an apocalyptic number.

7164731481 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

It is an amenable number.

7164731481 is a deficient number, since it is larger than the sum of its proper divisors (3092652327).

7164731481 is a wasteful number, since it uses less digits than its factorization.

7164731481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1978752.

The product of its digits is 112896, while the sum is 42.

The square root of 7164731481 is about 84644.7368771384. The cubic root of 7164731481 is about 1927.8207014649.

The spelling of 7164731481 in words is "seven billion, one hundred sixty-four million, seven hundred thirty-one thousand, four hundred eighty-one".