7741015561481 has 2 divisors, whose sum is σ = 7741015561482. Its totient is φ = 7741015561480.

The previous prime is 7741015561457. The next prime is 7741015561529. The reversal of 7741015561481 is 1841655101477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7729484238025 + 11531323456 = 2780195^2 + 107384^2 .

It is an emirp because it is prime and its reverse (1841655101477) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7741015561481 - 2¹⁸ = 7741015299337 is a prime.

It is a super-3 number, since 3×7741015561481³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (7741015561421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3870507780740 + 3870507780741.

It is an arithmetic number, because the mean of its divisors is an integer number (3870507780741).

Almost surely, 2^{7741015561481} is an apocalyptic number.

It is an amenable number.

7741015561481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7741015561481 is an equidigital number, since it uses as much as digits as its factorization.

7741015561481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 50.

The spelling of 7741015561481 in words is "seven trillion, seven hundred forty-one billion, fifteen million, five hundred sixty-one thousand, four hundred eighty-one".