7426889395381 has 2 divisors, whose sum is σ = 7426889395382. Its totient is φ = 7426889395380.

The previous prime is 7426889395319. The next prime is 7426889395391. The reversal of 7426889395381 is 1835939886247.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6865626214756 + 561263180625 = 2620234^2 + 749175^2 .

It is a cyclic number.

It is not a de Polignac number, because 7426889395381 - 2³⁵ = 7392529657013 is a prime.

It is a super-2 number, since 2×7426889395381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7426889395391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3713444697690 + 3713444697691.

It is an arithmetic number, because the mean of its divisors is an integer number (3713444697691).

Almost surely, 2^{7426889395381} is an apocalyptic number.

It is an amenable number.

7426889395381 is a deficient number, since it is larger than the sum of its proper divisors (1).

7426889395381 is an equidigital number, since it uses as much as digits as its factorization.

7426889395381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 627056640, while the sum is 73.

The spelling of 7426889395381 in words is "seven trillion, four hundred twenty-six billion, eight hundred eighty-nine million, three hundred ninety-five thousand, three hundred eighty-one".