7540636373 has 2 divisors, whose sum is σ = 7540636374. Its totient is φ = 7540636372.

The previous prime is 7540636357. The next prime is 7540636387. The reversal of 7540636373 is 3736360457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4594535089 + 2946101284 = 67783^2 + 54278^2 .

It is a cyclic number.

It is not a de Polignac number, because 7540636373 - 2⁴ = 7540636357 is a prime.

It is a super-2 number, since 2×7540636373² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7540636333) 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, 3770318186 + 3770318187.

It is an arithmetic number, because the mean of its divisors is an integer number (3770318187).

Almost surely, 2^7540636373 is an apocalyptic number.

It is an amenable number.

7540636373 is a deficient number, since it is larger than the sum of its proper divisors (1).

7540636373 is an equidigital number, since it uses as much as digits as its factorization.

7540636373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 952560, while the sum is 44.

The square root of 7540636373 is about 86836.8376496980. The cubic root of 7540636373 is about 1960.9626997933.

The spelling of 7540636373 in words is "seven billion, five hundred forty million, six hundred thirty-six thousand, three hundred seventy-three".