40752340729 has 2 divisors, whose sum is σ = 40752340730. Its totient is φ = 40752340728.

The previous prime is 40752340669. The next prime is 40752340763. The reversal of 40752340729 is 92704325704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22702955625 + 18049385104 = 150675^2 + 134348^2 .

It is a cyclic number.

It is not a de Polignac number, because 40752340729 - 2¹⁵ = 40752307961 is a prime.

It is not a weakly prime, because it can be changed into another prime (40752340129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20376170364 + 20376170365.

It is an arithmetic number, because the mean of its divisors is an integer number (20376170365).

Almost surely, 2^40752340729 is an apocalyptic number.

It is an amenable number.

40752340729 is a deficient number, since it is larger than the sum of its proper divisors (1).

40752340729 is an equidigital number, since it uses as much as digits as its factorization.

40752340729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 40752340729 in words is "forty billion, seven hundred fifty-two million, three hundred forty thousand, seven hundred twenty-nine".