7394678676481 has 2 divisors, whose sum is σ = 7394678676482. Its totient is φ = 7394678676480.

The previous prime is 7394678676479. The next prime is 7394678676493. The reversal of 7394678676481 is 1846768764937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4934800116481 + 2459878560000 = 2221441^2 + 1568400^2 .

It is a cyclic number.

It is not a de Polignac number, because 7394678676481 - 2¹ = 7394678676479 is a prime.

It is a super-2 number, since 2×7394678676481² (a number of 27 digits) contains 22 as substring.

Together with 7394678676479, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7394678676398 and 7394678676407.

It is not a weakly prime, because it can be changed into another prime (7394678976481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3697339338240 + 3697339338241.

It is an arithmetic number, because the mean of its divisors is an integer number (3697339338241).

Almost surely, 2^{7394678676481} is an apocalyptic number.

It is an amenable number.

7394678676481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7394678676481 is an equidigital number, since it uses as much as digits as its factorization.

7394678676481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048385024, while the sum is 76.

The spelling of 7394678676481 in words is "seven trillion, three hundred ninety-four billion, six hundred seventy-eight million, six hundred seventy-six thousand, four hundred eighty-one".