7741572751481 has 2 divisors, whose sum is σ = 7741572751482. Its totient is φ = 7741572751480.

The previous prime is 7741572751403. The next prime is 7741572751483. The reversal of 7741572751481 is 1841572751477.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6343245216400 + 1398327535081 = 2518580^2 + 1182509^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7741572751481 is a prime.

It is a super-2 number, since 2×7741572751481² (a number of 27 digits) contains 22 as substring.

Together with 7741572751483, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7741572751481.

It is not a weakly prime, because it can be changed into another prime (7741572751483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3870786375740 + 3870786375741.

It is an arithmetic number, because the mean of its divisors is an integer number (3870786375741).

Almost surely, 2^{7741572751481} is an apocalyptic number.

It is an amenable number.

7741572751481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7741572751481 is an equidigital number, since it uses as much as digits as its factorization.

7741572751481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15366400, while the sum is 59.

The spelling of 7741572751481 in words is "seven trillion, seven hundred forty-one billion, five hundred seventy-two million, seven hundred fifty-one thousand, four hundred eighty-one".