7058721081 has 16 divisors (see below), whose sum is σ = 9525035520. Its totient is φ = 4649356800.

The previous prime is 7058721071. The next prime is 7058721107. The reversal of 7058721081 is 1801278507.

It is not a de Polignac number, because 7058721081 - 2²⁶ = 6991612217 is a prime.

It is a super-2 number, since 2×7058721081² = 99651086598707617122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7058721041) 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, 84856 + ... + 146006.

It is an arithmetic number, because the mean of its divisors is an integer number (595314720).

Almost surely, 2^7058721081 is an apocalyptic number.

It is an amenable number.

7058721081 is a deficient number, since it is larger than the sum of its proper divisors (2466314439).

7058721081 is a wasteful number, since it uses less digits than its factorization.

7058721081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61616.

The product of its (nonzero) digits is 31360, while the sum is 39.

The square root of 7058721081 is about 84016.1953494682. The cubic root of 7058721081 is about 1918.2653133669.

Adding to 7058721081 its reverse (1801278507), we get a palindrome (8859999588).

The spelling of 7058721081 in words is "seven billion, fifty-eight million, seven hundred twenty-one thousand, eighty-one".