29132741681 has 2 divisors, whose sum is σ = 29132741682. Its totient is φ = 29132741680.

The previous prime is 29132741653. The next prime is 29132741707. The reversal of 29132741681 is 18614723192.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23543833600 + 5588908081 = 153440^2 + 74759^2 .

It is a cyclic number.

It is not a de Polignac number, because 29132741681 - 2²² = 29128547377 is a prime.

It is a super-2 number, since 2×29132741681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (29132741641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14566370840 + 14566370841.

It is an arithmetic number, because the mean of its divisors is an integer number (14566370841).

Almost surely, 2^29132741681 is an apocalyptic number.

It is an amenable number.

29132741681 is a deficient number, since it is larger than the sum of its proper divisors (1).

29132741681 is an equidigital number, since it uses as much as digits as its factorization.

29132741681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 44.

The spelling of 29132741681 in words is "twenty-nine billion, one hundred thirty-two million, seven hundred forty-one thousand, six hundred eighty-one".