40712523641 has 2 divisors, whose sum is σ = 40712523642. Its totient is φ = 40712523640.

The previous prime is 40712523601. The next prime is 40712523659. The reversal of 40712523641 is 14632521704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32544160000 + 8168363641 = 180400^2 + 90379^2 .

It is a cyclic number.

It is not a de Polignac number, because 40712523641 - 2¹⁴ = 40712507257 is a prime.

It is not a weakly prime, because it can be changed into another prime (40712523601) 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, 20356261820 + 20356261821.

It is an arithmetic number, because the mean of its divisors is an integer number (20356261821).

Almost surely, 2^40712523641 is an apocalyptic number.

It is an amenable number.

40712523641 is a deficient number, since it is larger than the sum of its proper divisors (1).

40712523641 is an equidigital number, since it uses as much as digits as its factorization.

40712523641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 35.

The spelling of 40712523641 in words is "forty billion, seven hundred twelve million, five hundred twenty-three thousand, six hundred forty-one".