7672589681 has 2 divisors, whose sum is σ = 7672589682. Its totient is φ = 7672589680.

The previous prime is 7672589641. The next prime is 7672589689. The reversal of 7672589681 is 1869852767.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4327008400 + 3345581281 = 65780^2 + 57841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7672589681 is a prime.

It is a super-2 number, since 2×7672589681² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7672589681.

It is not a weakly prime, because it can be changed into another prime (7672589689) 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 as a sum of consecutive naturals, namely, 3836294840 + 3836294841.

It is an arithmetic number, because the mean of its divisors is an integer number (3836294841).

Almost surely, 2^7672589681 is an apocalyptic number.

It is an amenable number.

7672589681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7672589681 is an equidigital number, since it uses as much as digits as its factorization.

7672589681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 59.

The square root of 7672589681 is about 87593.3198423259. The cubic root of 7672589681 is about 1972.3348921297.

The spelling of 7672589681 in words is "seven billion, six hundred seventy-two million, five hundred eighty-nine thousand, six hundred eighty-one".