40520075741 has 2 divisors, whose sum is σ = 40520075742. Its totient is φ = 40520075740.

The previous prime is 40520075699. The next prime is 40520075753. The reversal of 40520075741 is 14757002504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24886324516 + 15633751225 = 157754^2 + 125035^2 .

It is a cyclic number.

It is not a de Polignac number, because 40520075741 - 2²² = 40515881437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40520075341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20260037870 + 20260037871.

It is an arithmetic number, because the mean of its divisors is an integer number (20260037871).

Almost surely, 2^40520075741 is an apocalyptic number.

It is an amenable number.

40520075741 is a deficient number, since it is larger than the sum of its proper divisors (1).

40520075741 is an equidigital number, since it uses as much as digits as its factorization.

40520075741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39200, while the sum is 35.

The spelling of 40520075741 in words is "forty billion, five hundred twenty million, seventy-five thousand, seven hundred forty-one".