71429292881 has 2 divisors, whose sum is σ = 71429292882. Its totient is φ = 71429292880.

The previous prime is 71429292841. The next prime is 71429292901. The reversal of 71429292881 is 18829292417.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48373603600 + 23055689281 = 219940^2 + 151841^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-71429292881 is a prime.

It is a super-5 number, since 5×71429292881⁵ (a number of 55 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (71429292811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35714646440 + 35714646441.

It is an arithmetic number, because the mean of its divisors is an integer number (35714646441).

Almost surely, 2^71429292881 is an apocalyptic number.

It is an amenable number.

71429292881 is a deficient number, since it is larger than the sum of its proper divisors (1).

71429292881 is an equidigital number, since it uses as much as digits as its factorization.

71429292881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 53.

The spelling of 71429292881 in words is "seventy-one billion, four hundred twenty-nine million, two hundred ninety-two thousand, eight hundred eighty-one".