7464373736681 has 2 divisors, whose sum is σ = 7464373736682. Its totient is φ = 7464373736680.

The previous prime is 7464373736621. The next prime is 7464373736711. The reversal of 7464373736681 is 1866373734647.

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., 6296711955625 + 1167661781056 = 2509325^2 + 1080584^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7464373736681 is a prime.

It is a super-2 number, since 2×7464373736681² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7464373736621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3732186868340 + 3732186868341.

It is an arithmetic number, because the mean of its divisors is an integer number (3732186868341).

Almost surely, 2^{7464373736681} is an apocalyptic number.

It is an amenable number.

7464373736681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7464373736681 is an equidigital number, since it uses as much as digits as its factorization.

7464373736681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256048128, while the sum is 65.

The spelling of 7464373736681 in words is "seven trillion, four hundred sixty-four billion, three hundred seventy-three million, seven hundred thirty-six thousand, six hundred eighty-one".