7400848417681 has 2 divisors, whose sum is σ = 7400848417682. Its totient is φ = 7400848417680.

The previous prime is 7400848417643. The next prime is 7400848417769. The reversal of 7400848417681 is 1867148480047.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6836420769025 + 564427648656 = 2614655^2 + 751284^2 .

It is a cyclic number.

It is not a de Polignac number, because 7400848417681 - 2¹⁷ = 7400848286609 is a prime.

It is a super-2 number, since 2×7400848417681² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7400848417481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3700424208840 + 3700424208841.

It is an arithmetic number, because the mean of its divisors is an integer number (3700424208841).

Almost surely, 2^{7400848417681} is an apocalyptic number.

It is an amenable number.

7400848417681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7400848417681 is an equidigital number, since it uses as much as digits as its factorization.

7400848417681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9633792, while the sum is 58.

The spelling of 7400848417681 in words is "seven trillion, four hundred billion, eight hundred forty-eight million, four hundred seventeen thousand, six hundred eighty-one".