7376533531781 has 2 divisors, whose sum is σ = 7376533531782. Its totient is φ = 7376533531780.

The previous prime is 7376533531747. The next prime is 7376533531831. The reversal of 7376533531781 is 1871353356737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7101318928900 + 275214602881 = 2664830^2 + 524609^2 .

It is an emirp because it is prime and its reverse (1871353356737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7376533531781 - 2³⁴ = 7359353662597 is a prime.

It is a super-2 number, since 2×7376533531781² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7376533531781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7376533531681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3688266765890 + 3688266765891.

It is an arithmetic number, because the mean of its divisors is an integer number (3688266765891).

Almost surely, 2^{7376533531781} is an apocalyptic number.

It is an amenable number.

7376533531781 is a deficient number, since it is larger than the sum of its proper divisors (1).

7376533531781 is an equidigital number, since it uses as much as digits as its factorization.

7376533531781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33339600, while the sum is 59.

The spelling of 7376533531781 in words is "seven trillion, three hundred seventy-six billion, five hundred thirty-three million, five hundred thirty-one thousand, seven hundred eighty-one".